BASELINE: Update Chromium to 85.0.4183.14085-based

Change-Id: Iaa42f4680837c57725b1344f108c0196741f6057
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

15 files changed, 603 insertions, 188 deletions

diff --git a/chromium/third_party/abseil-cpp/absl/strings/cord.cc b/chromium/third_party/abseil-cpp/absl/strings/cord.cc
index 1ddd6aec91a..68f5398791d 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/cord.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/cord.cc
@@ -705,6 +705,37 @@ Cord::Cord(absl::string_view src) {
   }
 }
 
+template <typename T, Cord::EnableIfString<T>>
+Cord::Cord(T&& src) {
+  if (
+      // String is short: copy data to avoid external block overhead.
+      src.size() <= kMaxBytesToCopy ||
+      // String is wasteful: copy data to avoid pinning too much unused memory.
+      src.size() < src.capacity() / 2
+  ) {
+    if (src.size() <= InlineRep::kMaxInline) {
+      contents_.set_data(src.data(), src.size(), false);
+    } else {
+      contents_.set_tree(NewTree(src.data(), src.size(), 0));
+    }
+  } else {
+    struct StringReleaser {
+      void operator()(absl::string_view /* data */) {}
+      std::string data;
+    };
+    const absl::string_view original_data = src;
+    CordRepExternal* rep =
+        static_cast<CordRepExternal*>(absl::cord_internal::NewExternalRep(
+            original_data, StringReleaser{std::move(src)}));
+    // Moving src may have invalidated its data pointer, so adjust it.
+    rep->base =
+        static_cast<StringReleaser*>(GetExternalReleaser(rep))->data.data();
+    contents_.set_tree(rep);
+  }
+}
+
+template Cord::Cord(std::string&& src);
+
 // The destruction code is separate so that the compiler can determine
 // that it does not need to call the destructor on a moved-from Cord.
 void Cord::DestroyCordSlow() {
@@ -742,6 +773,18 @@ Cord& Cord::operator=(absl::string_view src) {
   return *this;
 }
 
+template <typename T, Cord::EnableIfString<T>>
+Cord& Cord::operator=(T&& src) {
+  if (src.size() <= kMaxBytesToCopy) {
+    *this = absl::string_view(src);
+  } else {
+    *this = Cord(std::move(src));
+  }
+  return *this;
+}
+
+template Cord& Cord::operator=(std::string&& src);
+
 // TODO(sanjay): Move to Cord::InlineRep section of file.  For now,
 // we keep it here to make diffs easier.
 void Cord::InlineRep::AppendArray(const char* src_data, size_t src_size) {
@@ -853,6 +896,17 @@ void Cord::Append(const Cord& src) { AppendImpl(src); }
 
 void Cord::Append(Cord&& src) { AppendImpl(std::move(src)); }
 
+template <typename T, Cord::EnableIfString<T>>
+void Cord::Append(T&& src) {
+  if (src.size() <= kMaxBytesToCopy) {
+    Append(absl::string_view(src));
+  } else {
+    Append(Cord(std::move(src)));
+  }
+}
+
+template void Cord::Append(std::string&& src);
+
 void Cord::Prepend(const Cord& src) {
   CordRep* src_tree = src.contents_.tree();
   if (src_tree != nullptr) {
@@ -882,6 +936,17 @@ void Cord::Prepend(absl::string_view src) {
   }
 }
 
+template <typename T, Cord::EnableIfString<T>>
+inline void Cord::Prepend(T&& src) {
+  if (src.size() <= kMaxBytesToCopy) {
+    Prepend(absl::string_view(src));
+  } else {
+    Prepend(Cord(std::move(src)));
+  }
+}
+
+template void Cord::Prepend(std::string&& src);
+
 static CordRep* RemovePrefixFrom(CordRep* node, size_t n) {
   if (n >= node->length) return nullptr;
   if (n == 0) return Ref(node);
diff --git a/chromium/third_party/abseil-cpp/absl/strings/cord.h b/chromium/third_party/abseil-cpp/absl/strings/cord.h
index 3be8d7d875f..8580d80315c 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/cord.h
+++ b/chromium/third_party/abseil-cpp/absl/strings/cord.h
@@ -147,11 +147,8 @@ class Cord {
   // Creates a Cord from a `std::string&&` rvalue. These constructors are
   // templated to avoid ambiguities for types that are convertible to both
   // `absl::string_view` and `std::string`, such as `const char*`.
-  //
-  // Note that these functions reserve the right to use the `string&&`'s
-  // memory and that they will do so in the future.
   template <typename T, EnableIfString<T> = 0>
-  explicit Cord(T&& src) : Cord(absl::string_view(src)) {}
+  explicit Cord(T&& src);
   template <typename T, EnableIfString<T> = 0>
   Cord& operator=(T&& src);
 
@@ -860,16 +857,16 @@ ExternalRepReleaserPair NewExternalWithUninitializedReleaser(
 struct Rank1 {};
 struct Rank0 : Rank1 {};
 
-template <typename Releaser, typename = ::absl::base_internal::InvokeT<
+template <typename Releaser, typename = ::absl::base_internal::invoke_result_t<
                                  Releaser, absl::string_view>>
 void InvokeReleaser(Rank0, Releaser&& releaser, absl::string_view data) {
-  ::absl::base_internal::Invoke(std::forward<Releaser>(releaser), data);
+  ::absl::base_internal::invoke(std::forward<Releaser>(releaser), data);
 }
 
 template <typename Releaser,
-          typename = ::absl::base_internal::InvokeT<Releaser>>
+          typename = ::absl::base_internal::invoke_result_t<Releaser>>
 void InvokeReleaser(Rank1, Releaser&& releaser, absl::string_view) {
-  ::absl::base_internal::Invoke(std::forward<Releaser>(releaser));
+  ::absl::base_internal::invoke(std::forward<Releaser>(releaser));
 }
 
 // Creates a new `CordRep` that owns `data` and `releaser` and returns a pointer
@@ -1048,11 +1045,8 @@ inline Cord& Cord::operator=(Cord&& x) noexcept {
   return *this;
 }
 
-template <typename T, Cord::EnableIfString<T>>
-inline Cord& Cord::operator=(T&& src) {
-  *this = absl::string_view(src);
-  return *this;
-}
+extern template Cord::Cord(std::string&& src);
+extern template Cord& Cord::operator=(std::string&& src);
 
 inline size_t Cord::size() const {
   // Length is 1st field in str.rep_
@@ -1098,19 +1092,8 @@ inline void Cord::Append(absl::string_view src) {
   contents_.AppendArray(src.data(), src.size());
 }
 
-template <typename T, Cord::EnableIfString<T>>
-inline void Cord::Append(T&& src) {
-  // Note that this function reserves the right to reuse the `string&&`'s
-  // memory and that it will do so in the future.
-  Append(absl::string_view(src));
-}
-
-template <typename T, Cord::EnableIfString<T>>
-inline void Cord::Prepend(T&& src) {
-  // Note that this function reserves the right to reuse the `string&&`'s
-  // memory and that it will do so in the future.
-  Prepend(absl::string_view(src));
-}
+extern template void Cord::Append(std::string&& src);
+extern template void Cord::Prepend(std::string&& src);
 
 inline int Cord::Compare(const Cord& rhs) const {
   if (!contents_.is_tree() && !rhs.contents_.is_tree()) {
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg.cc b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg.cc
index 02646addec1..9feb2248793 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg.cc
@@ -267,38 +267,42 @@ bool ConvertIntArg(T v, const FormatConversionSpecImpl conv,
   using U = typename MakeUnsigned<T>::type;
   IntDigits as_digits;
 
-  switch (conv.conversion_char()) {
-    case FormatConversionCharInternal::c:
+  // This odd casting is due to a bug in -Wswitch behavior in gcc49 which causes
+  // it to complain about a switch/case type mismatch, even though both are
+  // FormatConverionChar.  Likely this is because at this point
+  // FormatConversionChar is declared, but not defined.
+  switch (static_cast<uint8_t>(conv.conversion_char())) {
+    case static_cast<uint8_t>(FormatConversionCharInternal::c):
       return ConvertCharImpl(static_cast<unsigned char>(v), conv, sink);
 
-    case FormatConversionCharInternal::o:
+    case static_cast<uint8_t>(FormatConversionCharInternal::o):
       as_digits.PrintAsOct(static_cast<U>(v));
       break;
 
-    case FormatConversionCharInternal::x:
+    case static_cast<uint8_t>(FormatConversionCharInternal::x):
       as_digits.PrintAsHexLower(static_cast<U>(v));
       break;
-    case FormatConversionCharInternal::X:
+    case static_cast<uint8_t>(FormatConversionCharInternal::X):
       as_digits.PrintAsHexUpper(static_cast<U>(v));
       break;
 
-    case FormatConversionCharInternal::u:
+    case static_cast<uint8_t>(FormatConversionCharInternal::u):
       as_digits.PrintAsDec(static_cast<U>(v));
       break;
 
-    case FormatConversionCharInternal::d:
-    case FormatConversionCharInternal::i:
+    case static_cast<uint8_t>(FormatConversionCharInternal::d):
+    case static_cast<uint8_t>(FormatConversionCharInternal::i):
       as_digits.PrintAsDec(v);
       break;
 
-    case FormatConversionCharInternal::a:
-    case FormatConversionCharInternal::e:
-    case FormatConversionCharInternal::f:
-    case FormatConversionCharInternal::g:
-    case FormatConversionCharInternal::A:
-    case FormatConversionCharInternal::E:
-    case FormatConversionCharInternal::F:
-    case FormatConversionCharInternal::G:
+    case static_cast<uint8_t>(FormatConversionCharInternal::a):
+    case static_cast<uint8_t>(FormatConversionCharInternal::e):
+    case static_cast<uint8_t>(FormatConversionCharInternal::f):
+    case static_cast<uint8_t>(FormatConversionCharInternal::g):
+    case static_cast<uint8_t>(FormatConversionCharInternal::A):
+    case static_cast<uint8_t>(FormatConversionCharInternal::E):
+    case static_cast<uint8_t>(FormatConversionCharInternal::F):
+    case static_cast<uint8_t>(FormatConversionCharInternal::G):
       return ConvertFloatImpl(static_cast<double>(v), conv, sink);
 
     default:
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg.h b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg.h
index 8f79948bd91..3dbc1526d06 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg.h
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg.h
@@ -25,6 +25,10 @@ class Cord;
 class FormatCountCapture;
 class FormatSink;
 
+template <absl::FormatConversionCharSet C>
+struct FormatConvertResult;
+class FormatConversionSpec;
+
 namespace str_format_internal {
 
 template <typename T, typename = void>
@@ -37,6 +41,22 @@ struct HasUserDefinedConvert<T, void_t<decltype(AbslFormatConvert(
                                     std::declval<FormatSink*>()))>>
     : std::true_type {};
 
+void AbslFormatConvert();  // Stops the lexical name lookup
+template <typename T>
+auto FormatConvertImpl(const T& v, FormatConversionSpecImpl conv,
+                       FormatSinkImpl* sink)
+    -> decltype(AbslFormatConvert(v,
+                                  std::declval<const FormatConversionSpec&>(),
+                                  std::declval<FormatSink*>())) {
+  using FormatConversionSpecT =
+      absl::enable_if_t<sizeof(const T& (*)()) != 0, FormatConversionSpec>;
+  using FormatSinkT =
+      absl::enable_if_t<sizeof(const T& (*)()) != 0, FormatSink>;
+  auto fcs = conv.Wrap<FormatConversionSpecT>();
+  auto fs = sink->Wrap<FormatSinkT>();
+  return AbslFormatConvert(v, fcs, &fs);
+}
+
 template <typename T>
 class StreamedWrapper;
 
@@ -44,6 +64,13 @@ class StreamedWrapper;
 // then convert it, appending to `sink` and return `true`.
 // Otherwise fail and return `false`.
 
+// AbslFormatConvert(v, conv, sink) is intended to be found by ADL on 'v'
+// as an extension mechanism. These FormatConvertImpl functions are the default
+// implementations.
+// The ADL search is augmented via the 'Sink*' parameter, which also
+// serves as a disambiguator to reject possible unintended 'AbslFormatConvert'
+// functions in the namespaces associated with 'v'.
+
 // Raw pointers.
 struct VoidPtr {
   VoidPtr() = default;
@@ -60,6 +87,11 @@ struct ArgConvertResult {
 };
 
 template <FormatConversionCharSet C>
+constexpr FormatConversionCharSet ExtractCharSet(FormatConvertResult<C>) {
+  return C;
+}
+
+template <FormatConversionCharSet C>
 constexpr FormatConversionCharSet ExtractCharSet(ArgConvertResult<C>) {
   return C;
 }
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg_test.cc b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg_test.cc
index 37e5b7545f8..f53fd6bd145 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg_test.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/arg_test.cc
@@ -23,8 +23,17 @@ class FormatArgImplTest : public ::testing::Test {
   enum Color { kRed, kGreen, kBlue };
 
   static const char *hi() { return "hi"; }
+
+  struct X {};
+
+  X x_;
 };
 
+inline FormatConvertResult<FormatConversionCharSet{}> AbslFormatConvert(
+    const FormatArgImplTest::X &, const FormatConversionSpec &, FormatSink *) {
+  return {false};
+}
+
 TEST_F(FormatArgImplTest, ToInt) {
   int out = 0;
   EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(1), &out));
@@ -59,6 +68,7 @@ TEST_F(FormatArgImplTest, ToInt) {
       FormatArgImpl(static_cast<int *>(nullptr)), &out));
   EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(hi()), &out));
   EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl("hi"), &out));
+  EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(x_), &out));
   EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(kBlue), &out));
   EXPECT_EQ(2, out);
 }
@@ -96,8 +106,8 @@ TEST_F(FormatArgImplTest, WorksWithCharArraysOfUnknownSize) {
   std::string s;
   FormatSinkImpl sink(&s);
   FormatConversionSpecImpl conv;
-  FormatConversionSpecImplFriend::SetConversionChar(FormatConversionChar::s,
-                                                    &conv);
+  FormatConversionSpecImplFriend::SetConversionChar(
+      FormatConversionCharInternal::s, &conv);
   FormatConversionSpecImplFriend::SetFlags(Flags(), &conv);
   FormatConversionSpecImplFriend::SetWidth(-1, &conv);
   FormatConversionSpecImplFriend::SetPrecision(-1, &conv);
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/checker_test.cc b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/checker_test.cc
index 233481747bf..a76d70b0586 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/checker_test.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/checker_test.cc
@@ -11,13 +11,13 @@ namespace {
 
 std::string ConvToString(FormatConversionCharSet conv) {
   std::string out;
-#define CONV_SET_CASE(c) \
-  if (Contains(conv, FormatConversionCharSet::c)) { \
-    out += #c; \
+#define CONV_SET_CASE(c)                                    \
+  if (Contains(conv, FormatConversionCharSetInternal::c)) { \
+    out += #c;                                              \
   }
   ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(CONV_SET_CASE, )
 #undef CONV_SET_CASE
-  if (Contains(conv, FormatConversionCharSet::kStar)) {
+  if (Contains(conv, FormatConversionCharSetInternal::kStar)) {
     out += "*";
   }
   return out;
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/convert_test.cc b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/convert_test.cc
index 20c6229fcb3..0e8535c27b7 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/convert_test.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/convert_test.cc
@@ -764,6 +764,12 @@ TEST_F(FormatConvertTest, LongDouble) {
     }
   }
 
+  // Regression tests
+  //
+  // Using a string literal because not all platforms support hex literals or it
+  // might be out of range.
+  doubles.push_back(std::strtold("-0xf.ffffffb5feafffbp-16324L", nullptr));
+
   for (const char *fmt : kFormats) {
     for (char f : {'f', 'F',  //
                    'g', 'G',  //
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension.cc b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension.cc
index 2e5bc2ce0be..bb0d96cf321 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension.cc
@@ -33,16 +33,40 @@ std::string Flags::ToString() const {
   return s;
 }
 
-bool FormatSinkImpl::PutPaddedString(string_view v, int w, int p, bool l) {
+#define ABSL_INTERNAL_X_VAL(id) \
+  constexpr absl::FormatConversionChar FormatConversionCharInternal::id;
+ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(ABSL_INTERNAL_X_VAL, )
+#undef ABSL_INTERNAL_X_VAL
+// NOLINTNEXTLINE(readability-redundant-declaration)
+constexpr absl::FormatConversionChar FormatConversionCharInternal::kNone;
+
+#define ABSL_INTERNAL_CHAR_SET_CASE(c) \
+  constexpr FormatConversionCharSet FormatConversionCharSetInternal::c;
+ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(ABSL_INTERNAL_CHAR_SET_CASE, )
+#undef ABSL_INTERNAL_CHAR_SET_CASE
+
+// NOLINTNEXTLINE(readability-redundant-declaration)
+constexpr FormatConversionCharSet FormatConversionCharSetInternal::kStar;
+// NOLINTNEXTLINE(readability-redundant-declaration)
+constexpr FormatConversionCharSet FormatConversionCharSetInternal::kIntegral;
+// NOLINTNEXTLINE(readability-redundant-declaration)
+constexpr FormatConversionCharSet FormatConversionCharSetInternal::kFloating;
+// NOLINTNEXTLINE(readability-redundant-declaration)
+constexpr FormatConversionCharSet FormatConversionCharSetInternal::kNumeric;
+// NOLINTNEXTLINE(readability-redundant-declaration)
+constexpr FormatConversionCharSet FormatConversionCharSetInternal::kPointer;
+
+bool FormatSinkImpl::PutPaddedString(string_view value, int width,
+                                     int precision, bool left) {
   size_t space_remaining = 0;
-  if (w >= 0) space_remaining = w;
-  size_t n = v.size();
-  if (p >= 0) n = std::min(n, static_cast<size_t>(p));
-  string_view shown(v.data(), n);
+  if (width >= 0) space_remaining = width;
+  size_t n = value.size();
+  if (precision >= 0) n = std::min(n, static_cast<size_t>(precision));
+  string_view shown(value.data(), n);
   space_remaining = Excess(shown.size(), space_remaining);
-  if (!l) Append(space_remaining, ' ');
+  if (!left) Append(space_remaining, ' ');
   Append(shown);
-  if (l) Append(space_remaining, ' ');
+  if (left) Append(space_remaining, ' ');
   return true;
 }
 
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension.h b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension.h
index 36e70646d7d..a9b9e137deb 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension.h
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension.h
@@ -31,9 +31,10 @@
 namespace absl {
 ABSL_NAMESPACE_BEGIN
 
-namespace str_format_internal {
-enum class FormatConversionCharSet : uint64_t;
 enum class FormatConversionChar : uint8_t;
+enum class FormatConversionCharSet : uint64_t;
+
+namespace str_format_internal {
 
 class FormatRawSinkImpl {
  public:
@@ -106,7 +107,7 @@ class FormatSinkImpl {
   size_t size() const { return size_; }
 
   // Put 'v' to 'sink' with specified width, precision, and left flag.
-  bool PutPaddedString(string_view v, int w, int p, bool l);
+  bool PutPaddedString(string_view v, int width, int precision, bool left);
 
   template <typename T>
   T Wrap() {
@@ -360,14 +361,12 @@ struct FormatConversionCharSetInternal {
   static constexpr FormatConversionCharSet kStar =
       FormatConversionCharToConvValue('*');
 
-  // Some predefined values (TODO(matthewbr), delete any that are unused).
   static constexpr FormatConversionCharSet kIntegral =
       FormatConversionCharSetUnion(d, i, u, o, x, X);
   static constexpr FormatConversionCharSet kFloating =
       FormatConversionCharSetUnion(a, e, f, g, A, E, F, G);
   static constexpr FormatConversionCharSet kNumeric =
       FormatConversionCharSetUnion(kIntegral, kFloating);
-  static constexpr FormatConversionCharSet kString = s;
   static constexpr FormatConversionCharSet kPointer = p;
 };
 
@@ -420,81 +419,6 @@ inline size_t Excess(size_t used, size_t capacity) {
   return used < capacity ? capacity - used : 0;
 }
 
-class FormatConversionSpec {
- public:
-  // Width and precison are not specified, no flags are set.
-  bool is_basic() const { return impl_.is_basic(); }
-  bool has_left_flag() const { return impl_.has_left_flag(); }
-  bool has_show_pos_flag() const { return impl_.has_show_pos_flag(); }
-  bool has_sign_col_flag() const { return impl_.has_sign_col_flag(); }
-  bool has_alt_flag() const { return impl_.has_alt_flag(); }
-  bool has_zero_flag() const { return impl_.has_zero_flag(); }
-
-  FormatConversionChar conversion_char() const {
-    return impl_.conversion_char();
-  }
-
-  // Returns the specified width. If width is unspecfied, it returns a negative
-  // value.
-  int width() const { return impl_.width(); }
-  // Returns the specified precision. If precision is unspecfied, it returns a
-  // negative value.
-  int precision() const { return impl_.precision(); }
-
- private:
-  explicit FormatConversionSpec(
-      str_format_internal::FormatConversionSpecImpl impl)
-      : impl_(impl) {}
-
-  friend str_format_internal::FormatConversionSpecImpl;
-
-  absl::str_format_internal::FormatConversionSpecImpl impl_;
-};
-
-// clang-format off
-enum class FormatConversionChar : uint8_t {
-  c, s,                    // text
-  d, i, o, u, x, X,        // int
-  f, F, e, E, g, G, a, A,  // float
-  n, p                     // misc
-};
-// clang-format on
-
-enum class FormatConversionCharSet : uint64_t {
-  // text
-  c = str_format_internal::FormatConversionCharToConvInt('c'),
-  s = str_format_internal::FormatConversionCharToConvInt('s'),
-  // integer
-  d = str_format_internal::FormatConversionCharToConvInt('d'),
-  i = str_format_internal::FormatConversionCharToConvInt('i'),
-  o = str_format_internal::FormatConversionCharToConvInt('o'),
-  u = str_format_internal::FormatConversionCharToConvInt('u'),
-  x = str_format_internal::FormatConversionCharToConvInt('x'),
-  X = str_format_internal::FormatConversionCharToConvInt('X'),
-  // Float
-  f = str_format_internal::FormatConversionCharToConvInt('f'),
-  F = str_format_internal::FormatConversionCharToConvInt('F'),
-  e = str_format_internal::FormatConversionCharToConvInt('e'),
-  E = str_format_internal::FormatConversionCharToConvInt('E'),
-  g = str_format_internal::FormatConversionCharToConvInt('g'),
-  G = str_format_internal::FormatConversionCharToConvInt('G'),
-  a = str_format_internal::FormatConversionCharToConvInt('a'),
-  A = str_format_internal::FormatConversionCharToConvInt('A'),
-  // misc
-  n = str_format_internal::FormatConversionCharToConvInt('n'),
-  p = str_format_internal::FormatConversionCharToConvInt('p'),
-
-  // Used for width/precision '*' specification.
-  kStar = str_format_internal::FormatConversionCharToConvInt('*'),
-
-  // Some predefined values:
-  kIntegral = d | i | u | o | x | X,
-  kFloating = a | e | f | g | A | E | F | G,
-  kNumeric = kIntegral | kFloating,
-  kString = s,
-  kPointer = p,
-};
-
 }  // namespace str_format_internal
 
 ABSL_NAMESPACE_END
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension_test.cc b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension_test.cc
index 0a023f9c033..1c93fdb1c75 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension_test.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/extension_test.cc
@@ -80,4 +80,19 @@ TEST(FormatExtensionTest, SinkAppendChars) {
     EXPECT_EQ(actual, expected);
   }
 }
+
+TEST(FormatExtensionTest, VerifyEnumEquality) {
+#define X_VAL(id)                           \
+  EXPECT_EQ(absl::FormatConversionChar::id, \
+            absl::str_format_internal::FormatConversionCharInternal::id);
+  ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(X_VAL, );
+#undef X_VAL
+
+#define X_VAL(id)                              \
+  EXPECT_EQ(absl::FormatConversionCharSet::id, \
+            absl::str_format_internal::FormatConversionCharSetInternal::id);
+  ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(X_VAL, );
+#undef X_VAL
+}
+
 }  // namespace
diff --git a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.cc b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.cc
index a761a5a5f9c..10e4695411b 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.cc
@@ -224,13 +224,13 @@ class FractionalDigitGenerator {
   // This function will allocate enough stack space to perform the conversion.
   static void RunConversion(
       uint128 v, int exp, absl::FunctionRef<void(FractionalDigitGenerator)> f) {
+    using Limits = std::numeric_limits<long double>;
     assert(-exp < 0);
-    assert(-exp >= std::numeric_limits<long double>::min_exponent - 128);
-    static_assert(
-        StackArray::kMaxCapacity >=
-            (128 - std::numeric_limits<long double>::min_exponent + 31) / 32,
-        "");
-    StackArray::RunWithCapacity((exp + 31) / 32,
+    assert(-exp >= Limits::min_exponent - 128);
+    static_assert(StackArray::kMaxCapacity >=
+                      (Limits::digits + 128 - Limits::min_exponent + 31) / 32,
+                  "");
+    StackArray::RunWithCapacity((Limits::digits + exp + 31) / 32,
                                 [=](absl::Span<uint32_t> input) {
                                   f(FractionalDigitGenerator(input, v, exp));
                                 });
diff --git a/chromium/third_party/abseil-cpp/absl/strings/str_format.h b/chromium/third_party/abseil-cpp/absl/strings/str_format.h
index f48510b45b3..01465107e10 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/str_format.h
+++ b/chromium/third_party/abseil-cpp/absl/strings/str_format.h
@@ -19,7 +19,7 @@
 //
 // The `str_format` library is a typesafe replacement for the family of
 // `printf()` string formatting routines within the `<cstdio>` standard library
-// header. Like the `printf` family, the `str_format` uses a "format string" to
+// header. Like the `printf` family, `str_format` uses a "format string" to
 // perform argument substitutions based on types. See the `FormatSpec` section
 // below for format string documentation.
 //
@@ -65,8 +65,7 @@
 //     boolean from a runtime check.
 //
 // In addition, the `str_format` library provides extension points for
-// augmenting formatting to new types. These extensions are fully documented
-// within the `str_format_extension.h` header file.
+// augmenting formatting to new types.  See "StrFormat Extensions" below.
 
 #ifndef ABSL_STRINGS_STR_FORMAT_H_
 #define ABSL_STRINGS_STR_FORMAT_H_
@@ -282,9 +281,36 @@ using FormatSpec = str_format_internal::FormatSpecTemplate<
 //   } else {
 //     ... error case ...
 //   }
+
+#if defined(__cpp_nontype_template_parameter_auto)
+// If C++17 is available, an 'extended' format is also allowed that can specify
+// multiple conversion characters per format argument, using a combination of
+// `absl::FormatConversionCharSet` enum values (logically a set union)
+//  via the `|` operator. (Single character-based arguments are still accepted,
+// but cannot be combined). Some common conversions also have predefined enum
+// values, such as `absl::FormatConversionCharSet::kIntegral`.
+//
+// Example:
+//   // Extended format supports multiple conversion characters per argument,
+//   // specified via a combination of `FormatConversionCharSet` enums.
+//   using MyFormat = absl::ParsedFormat<absl::FormatConversionCharSet::d |
+//                                       absl::FormatConversionCharSet::x>;
+//   MyFormat GetFormat(bool use_hex) {
+//     if (use_hex) return MyFormat("foo %x bar");
+//     return MyFormat("foo %d bar");
+//   }
+//   // `format` can be used with any value that supports 'd' and 'x',
+//   // like `int`.
+//   auto format = GetFormat(use_hex);
+//   value = StringF(format, i);
+template <auto... Conv>
+using ParsedFormat = absl::str_format_internal::ExtendedParsedFormat<
+    absl::str_format_internal::ToFormatConversionCharSet(Conv)...>;
+#else
 template <char... Conv>
 using ParsedFormat = str_format_internal::ExtendedParsedFormat<
     absl::str_format_internal::ToFormatConversionCharSet(Conv)...>;
+#endif  // defined(__cpp_nontype_template_parameter_auto)
 
 // StrFormat()
 //
@@ -541,6 +567,246 @@ ABSL_MUST_USE_RESULT inline bool FormatUntyped(
       str_format_internal::UntypedFormatSpecImpl::Extract(format), args);
 }
 
+//------------------------------------------------------------------------------
+// StrFormat Extensions
+//------------------------------------------------------------------------------
+//
+// AbslFormatConvert()
+//
+// The StrFormat library provides a customization API for formatting
+// user-defined types using absl::StrFormat(). The API relies on detecting an
+// overload in the user-defined type's namespace of a free (non-member)
+// `AbslFormatConvert()` function, usually as a friend definition with the
+// following signature:
+//
+// absl::FormatConvertResult<...> AbslFormatConvert(
+//     const X& value,
+//     const absl::FormatConversionSpec& spec,
+//     absl::FormatSink *sink);
+//
+// An `AbslFormatConvert()` overload for a type should only be declared in the
+// same file and namespace as said type.
+//
+// The abstractions within this definition include:
+//
+// * An `absl::FormatConversionSpec` to specify the fields to pull from a
+//   user-defined type's format string
+// * An `absl::FormatSink` to hold the converted string data during the
+//   conversion process.
+// * An `absl::FormatConvertResult` to hold the status of the returned
+//   formatting operation
+//
+// The return type encodes all the conversion characters that your
+// AbslFormatConvert() routine accepts.  The return value should be {true}.
+// A return value of {false} will result in `StrFormat()` returning
+// an empty string.  This result will be propagated to the result of
+// `FormatUntyped`.
+//
+// Example:
+//
+// struct Point {
+//   // To add formatting support to `Point`, we simply need to add a free
+//   // (non-member) function `AbslFormatConvert()`.  This method interprets
+//   // `spec` to print in the request format. The allowed conversion characters
+//   // can be restricted via the type of the result, in this example
+//   // string and integral formatting are allowed (but not, for instance
+//   // floating point characters like "%f").  You can add such a free function
+//   // using a friend declaration within the body of the class:
+//   friend absl::FormatConvertResult<absl::FormatConversionCharSet::kString |
+//                                    absl::FormatConversionCharSet::kIntegral>
+//   AbslFormatConvert(const Point& p, const absl::FormatConversionSpec& spec,
+//                     absl::FormatSink* s) {
+//     if (spec.conversion_char() == absl::FormatConversionChar::s) {
+//       s->Append(absl::StrCat("x=", p.x, " y=", p.y));
+//     } else {
+//       s->Append(absl::StrCat(p.x, ",", p.y));
+//     }
+//     return {true};
+//   }
+//
+//   int x;
+//   int y;
+// };
+
+// clang-format off
+
+// FormatConversionChar
+//
+// Specifies the formatting character provided in the format string
+// passed to `StrFormat()`.
+enum class FormatConversionChar : uint8_t {
+  c, s,                    // text
+  d, i, o, u, x, X,        // int
+  f, F, e, E, g, G, a, A,  // float
+  n, p                     // misc
+};
+// clang-format on
+
+// FormatConversionSpec
+//
+// Specifies modifications to the conversion of the format string, through use
+// of one or more format flags in the source format string.
+class FormatConversionSpec {
+ public:
+  // FormatConversionSpec::is_basic()
+  //
+  // Indicates that width and precision are not specified, and no additional
+  // flags are set for this conversion character in the format string.
+  bool is_basic() const { return impl_.is_basic(); }
+
+  // FormatConversionSpec::has_left_flag()
+  //
+  // Indicates whether the result should be left justified for this conversion
+  // character in the format string. This flag is set through use of a '-'
+  // character in the format string. E.g. "%-s"
+  bool has_left_flag() const { return impl_.has_left_flag(); }
+
+  // FormatConversionSpec::has_show_pos_flag()
+  //
+  // Indicates whether a sign column is prepended to the result for this
+  // conversion character in the format string, even if the result is positive.
+  // This flag is set through use of a '+' character in the format string.
+  // E.g. "%+d"
+  bool has_show_pos_flag() const { return impl_.has_show_pos_flag(); }
+
+  // FormatConversionSpec::has_sign_col_flag()
+  //
+  // Indicates whether a mandatory sign column is added to the result for this
+  // conversion character. This flag is set through use of a space character
+  // (' ') in the format string. E.g. "% i"
+  bool has_sign_col_flag() const { return impl_.has_sign_col_flag(); }
+
+  // FormatConversionSpec::has_alt_flag()
+  //
+  // Indicates whether an "alternate" format is applied to the result for this
+  // conversion character. Alternative forms depend on the type of conversion
+  // character, and unallowed alternatives are undefined. This flag is set
+  // through use of a '#' character in the format string. E.g. "%#h"
+  bool has_alt_flag() const { return impl_.has_alt_flag(); }
+
+  // FormatConversionSpec::has_zero_flag()
+  //
+  // Indicates whether zeroes should be prepended to the result for this
+  // conversion character instead of spaces. This flag is set through use of the
+  // '0' character in the format string. E.g. "%0f"
+  bool has_zero_flag() const { return impl_.has_zero_flag(); }
+
+  // FormatConversionSpec::conversion_char()
+  //
+  // Returns the underlying conversion character.
+  FormatConversionChar conversion_char() const {
+    return impl_.conversion_char();
+  }
+
+  // FormatConversionSpec::width()
+  //
+  // Returns the specified width (indicated through use of a non-zero integer
+  // value or '*' character) of the conversion character. If width is
+  // unspecified, it returns a negative value.
+  int width() const { return impl_.width(); }
+
+  // FormatConversionSpec::precision()
+  //
+  // Returns the specified precision (through use of the '.' character followed
+  // by a non-zero integer value or '*' character) of the conversion character.
+  // If precision is unspecified, it returns a negative value.
+  int precision() const { return impl_.precision(); }
+
+ private:
+  explicit FormatConversionSpec(
+      str_format_internal::FormatConversionSpecImpl impl)
+      : impl_(impl) {}
+
+  friend str_format_internal::FormatConversionSpecImpl;
+
+  absl::str_format_internal::FormatConversionSpecImpl impl_;
+};
+
+// Type safe OR operator for FormatConversionCharSet to allow accepting multiple
+// conversion chars in custom format converters.
+constexpr FormatConversionCharSet operator|(FormatConversionCharSet a,
+                                            FormatConversionCharSet b) {
+  return static_cast<FormatConversionCharSet>(static_cast<uint64_t>(a) |
+                                              static_cast<uint64_t>(b));
+}
+
+// FormatConversionCharSet
+//
+// Specifies the _accepted_ conversion types as a template parameter to
+// FormatConvertResult for custom implementations of `AbslFormatConvert`.
+// Note the helper predefined alias definitions (kIntegral, etc.) below.
+enum class FormatConversionCharSet : uint64_t {
+  // text
+  c = str_format_internal::FormatConversionCharToConvInt('c'),
+  s = str_format_internal::FormatConversionCharToConvInt('s'),
+  // integer
+  d = str_format_internal::FormatConversionCharToConvInt('d'),
+  i = str_format_internal::FormatConversionCharToConvInt('i'),
+  o = str_format_internal::FormatConversionCharToConvInt('o'),
+  u = str_format_internal::FormatConversionCharToConvInt('u'),
+  x = str_format_internal::FormatConversionCharToConvInt('x'),
+  X = str_format_internal::FormatConversionCharToConvInt('X'),
+  // Float
+  f = str_format_internal::FormatConversionCharToConvInt('f'),
+  F = str_format_internal::FormatConversionCharToConvInt('F'),
+  e = str_format_internal::FormatConversionCharToConvInt('e'),
+  E = str_format_internal::FormatConversionCharToConvInt('E'),
+  g = str_format_internal::FormatConversionCharToConvInt('g'),
+  G = str_format_internal::FormatConversionCharToConvInt('G'),
+  a = str_format_internal::FormatConversionCharToConvInt('a'),
+  A = str_format_internal::FormatConversionCharToConvInt('A'),
+  // misc
+  n = str_format_internal::FormatConversionCharToConvInt('n'),
+  p = str_format_internal::FormatConversionCharToConvInt('p'),
+
+  // Used for width/precision '*' specification.
+  kStar = static_cast<uint64_t>(
+      absl::str_format_internal::FormatConversionCharSetInternal::kStar),
+  // Some predefined values:
+  kIntegral = d | i | u | o | x | X,
+  kFloating = a | e | f | g | A | E | F | G,
+  kNumeric = kIntegral | kFloating,
+  kString = s,
+  kPointer = p,
+};
+
+// FormatSink
+//
+// An abstraction to which conversions write their string data.
+//
+class FormatSink {
+ public:
+  // Appends `count` copies of `ch`.
+  void Append(size_t count, char ch) { sink_->Append(count, ch); }
+
+  void Append(string_view v) { sink_->Append(v); }
+
+  // Appends the first `precision` bytes of `v`. If this is less than
+  // `width`, spaces will be appended first (if `left` is false), or
+  // after (if `left` is true) to ensure the total amount appended is
+  // at least `width`.
+  bool PutPaddedString(string_view v, int width, int precision, bool left) {
+    return sink_->PutPaddedString(v, width, precision, left);
+  }
+
+ private:
+  friend str_format_internal::FormatSinkImpl;
+  explicit FormatSink(str_format_internal::FormatSinkImpl* s) : sink_(s) {}
+  str_format_internal::FormatSinkImpl* sink_;
+};
+
+// FormatConvertResult
+//
+// Indicates whether a call to AbslFormatConvert() was successful.
+// This return type informs the StrFormat extension framework (through
+// ADL but using the return type) of what conversion characters are supported.
+// It is strongly discouraged to return {false}, as this will result in an
+// empty string in StrFormat.
+template <FormatConversionCharSet C>
+struct FormatConvertResult {
+  bool value;
+};
+
 ABSL_NAMESPACE_END
 }  // namespace absl
 
diff --git a/chromium/third_party/abseil-cpp/absl/strings/str_format_test.cc b/chromium/third_party/abseil-cpp/absl/strings/str_format_test.cc
index 3f14dba3e35..d9fb25af09a 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/str_format_test.cc
+++ b/chromium/third_party/abseil-cpp/absl/strings/str_format_test.cc
@@ -1,4 +1,6 @@
 
+#include "absl/strings/str_format.h"
+
 #include <cstdarg>
 #include <cstdint>
 #include <cstdio>
@@ -6,7 +8,8 @@
 
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
-#include "absl/strings/str_format.h"
+#include "absl/strings/cord.h"
+#include "absl/strings/str_cat.h"
 #include "absl/strings/string_view.h"
 
 namespace absl {
@@ -350,6 +353,7 @@ TEST(StrFormat, BehavesAsDocumented) {
   EXPECT_EQ(StrFormat("%s", "C"), "C");
   EXPECT_EQ(StrFormat("%s", std::string("C++")), "C++");
   EXPECT_EQ(StrFormat("%s", string_view("view")), "view");
+  EXPECT_EQ(StrFormat("%s", absl::Cord("cord")), "cord");
   // Integral Conversion
   //     These format integral types: char, int, long, uint64_t, etc.
   EXPECT_EQ(StrFormat("%d", char{10}), "10");
@@ -532,103 +536,152 @@ TEST_F(ParsedFormatTest, SimpleUncheckedIncorrect) {
   EXPECT_FALSE((ParsedFormat<'s', 'd', 'g'>::New(format)));
 }
 
-using absl::str_format_internal::FormatConversionCharSet;
+#if defined(__cpp_nontype_template_parameter_auto)
+
+template <auto T>
+std::true_type IsValidParsedFormatArgTest(ParsedFormat<T>*);
+
+template <auto T>
+std::false_type IsValidParsedFormatArgTest(...);
+
+template <auto T>
+using IsValidParsedFormatArg = decltype(IsValidParsedFormatArgTest<T>(nullptr));
+
+TEST_F(ParsedFormatTest, OnlyValidTypesAllowed) {
+  ASSERT_TRUE(IsValidParsedFormatArg<'c'>::value);
+
+  ASSERT_TRUE(IsValidParsedFormatArg<FormatConversionCharSet::d>::value);
+
+  ASSERT_TRUE(IsValidParsedFormatArg<absl::FormatConversionCharSet::d |
+                                     absl::FormatConversionCharSet::x>::value);
+  ASSERT_TRUE(
+      IsValidParsedFormatArg<absl::FormatConversionCharSet::kIntegral>::value);
+
+  // This is an easy mistake to make, however, this will reduce to an integer
+  // which has no meaning, so we need to ensure it doesn't compile.
+  ASSERT_FALSE(IsValidParsedFormatArg<'x' | 'd'>::value);
+
+  // For now, we disallow construction based on ConversionChar (rather than
+  // CharSet)
+  ASSERT_FALSE(IsValidParsedFormatArg<absl::FormatConversionChar::d>::value);
+}
+
+TEST_F(ParsedFormatTest, ExtendedTyping) {
+  EXPECT_FALSE(ParsedFormat<FormatConversionCharSet::d>::New(""));
+  ASSERT_TRUE(ParsedFormat<absl::FormatConversionCharSet::d>::New("%d"));
+  auto v1 = ParsedFormat<'d', absl::FormatConversionCharSet::s>::New("%d%s");
+  ASSERT_TRUE(v1);
+  auto v2 = ParsedFormat<absl::FormatConversionCharSet::d, 's'>::New("%d%s");
+  ASSERT_TRUE(v2);
+  auto v3 = ParsedFormat<absl::FormatConversionCharSet::d |
+                             absl::FormatConversionCharSet::s,
+                         's'>::New("%d%s");
+  ASSERT_TRUE(v3);
+  auto v4 = ParsedFormat<absl::FormatConversionCharSet::d |
+                             absl::FormatConversionCharSet::s,
+                         's'>::New("%s%s");
+  ASSERT_TRUE(v4);
+}
+#endif
 
 TEST_F(ParsedFormatTest, UncheckedCorrect) {
-  auto f = ExtendedParsedFormat<FormatConversionCharSet::d>::New("ABC%dDEF");
+  auto f =
+      ExtendedParsedFormat<absl::FormatConversionCharSet::d>::New("ABC%dDEF");
   ASSERT_TRUE(f);
   EXPECT_EQ("[ABC]{d:1$d}[DEF]", SummarizeParsedFormat(*f));
 
   std::string format = "%sFFF%dZZZ%f";
-  auto f2 =
-      ExtendedParsedFormat<FormatConversionCharSet::kString,
-                           FormatConversionCharSet::d,
-                           FormatConversionCharSet::kFloating>::New(format);
+  auto f2 = ExtendedParsedFormat<
+      absl::FormatConversionCharSet::kString, absl::FormatConversionCharSet::d,
+      absl::FormatConversionCharSet::kFloating>::New(format);
 
   ASSERT_TRUE(f2);
   EXPECT_EQ("{s:1$s}[FFF]{d:2$d}[ZZZ]{f:3$f}", SummarizeParsedFormat(*f2));
 
-  f2 =
-      ExtendedParsedFormat<FormatConversionCharSet::kString,
-                           FormatConversionCharSet::d,
-                           FormatConversionCharSet::kFloating>::New("%s %d %f");
+  f2 = ExtendedParsedFormat<
+      absl::FormatConversionCharSet::kString, absl::FormatConversionCharSet::d,
+      absl::FormatConversionCharSet::kFloating>::New("%s %d %f");
 
   ASSERT_TRUE(f2);
   EXPECT_EQ("{s:1$s}[ ]{d:2$d}[ ]{f:3$f}", SummarizeParsedFormat(*f2));
 
-  auto star = ExtendedParsedFormat<FormatConversionCharSet::kStar,
-                                   FormatConversionCharSet::d>::New("%*d");
+  auto star =
+      ExtendedParsedFormat<absl::FormatConversionCharSet::kStar,
+                           absl::FormatConversionCharSet::d>::New("%*d");
   ASSERT_TRUE(star);
   EXPECT_EQ("{*d:2$1$*d}", SummarizeParsedFormat(*star));
 
   auto dollar =
-      ExtendedParsedFormat<FormatConversionCharSet::d,
-                           FormatConversionCharSet::s>::New("%2$s %1$d");
+      ExtendedParsedFormat<absl::FormatConversionCharSet::d,
+                           absl::FormatConversionCharSet::s>::New("%2$s %1$d");
   ASSERT_TRUE(dollar);
   EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}", SummarizeParsedFormat(*dollar));
   // with reuse
-  dollar =
-      ExtendedParsedFormat<FormatConversionCharSet::d,
-                           FormatConversionCharSet::s>::New("%2$s %1$d %1$d");
+  dollar = ExtendedParsedFormat<
+      absl::FormatConversionCharSet::d,
+      absl::FormatConversionCharSet::s>::New("%2$s %1$d %1$d");
   ASSERT_TRUE(dollar);
   EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}[ ]{1$d:1$d}",
             SummarizeParsedFormat(*dollar));
 }
 
 TEST_F(ParsedFormatTest, UncheckedIgnoredArgs) {
-  EXPECT_FALSE((ExtendedParsedFormat<FormatConversionCharSet::d,
-                                     FormatConversionCharSet::s>::New("ABC")));
   EXPECT_FALSE(
-      (ExtendedParsedFormat<FormatConversionCharSet::d,
-                            FormatConversionCharSet::s>::New("%dABC")));
+      (ExtendedParsedFormat<absl::FormatConversionCharSet::d,
+                            absl::FormatConversionCharSet::s>::New("ABC")));
   EXPECT_FALSE(
-      (ExtendedParsedFormat<FormatConversionCharSet::d,
-                            FormatConversionCharSet::s>::New("ABC%2$s")));
-  auto f =
-      ExtendedParsedFormat<FormatConversionCharSet::d,
-                           FormatConversionCharSet::s>::NewAllowIgnored("ABC");
+      (ExtendedParsedFormat<absl::FormatConversionCharSet::d,
+                            absl::FormatConversionCharSet::s>::New("%dABC")));
+  EXPECT_FALSE(
+      (ExtendedParsedFormat<absl::FormatConversionCharSet::d,
+                            absl::FormatConversionCharSet::s>::New("ABC%2$s")));
+  auto f = ExtendedParsedFormat<
+      absl::FormatConversionCharSet::d,
+      absl::FormatConversionCharSet::s>::NewAllowIgnored("ABC");
   ASSERT_TRUE(f);
   EXPECT_EQ("[ABC]", SummarizeParsedFormat(*f));
   f = ExtendedParsedFormat<
-      FormatConversionCharSet::d,
-      FormatConversionCharSet::s>::NewAllowIgnored("%dABC");
+      absl::FormatConversionCharSet::d,
+      absl::FormatConversionCharSet::s>::NewAllowIgnored("%dABC");
   ASSERT_TRUE(f);
   EXPECT_EQ("{d:1$d}[ABC]", SummarizeParsedFormat(*f));
   f = ExtendedParsedFormat<
-      FormatConversionCharSet::d,
-      FormatConversionCharSet::s>::NewAllowIgnored("ABC%2$s");
+      absl::FormatConversionCharSet::d,
+      absl::FormatConversionCharSet::s>::NewAllowIgnored("ABC%2$s");
   ASSERT_TRUE(f);
   EXPECT_EQ("[ABC]{2$s:2$s}", SummarizeParsedFormat(*f));
 }
 
 TEST_F(ParsedFormatTest, UncheckedMultipleTypes) {
-  auto dx = ExtendedParsedFormat<FormatConversionCharSet::d |
-                                 FormatConversionCharSet::x>::New("%1$d %1$x");
+  auto dx =
+      ExtendedParsedFormat<absl::FormatConversionCharSet::d |
+                           absl::FormatConversionCharSet::x>::New("%1$d %1$x");
   EXPECT_TRUE(dx);
   EXPECT_EQ("{1$d:1$d}[ ]{1$x:1$x}", SummarizeParsedFormat(*dx));
 
-  dx = ExtendedParsedFormat<FormatConversionCharSet::d |
-                            FormatConversionCharSet::x>::New("%1$d");
+  dx = ExtendedParsedFormat<absl::FormatConversionCharSet::d |
+                            absl::FormatConversionCharSet::x>::New("%1$d");
   EXPECT_TRUE(dx);
   EXPECT_EQ("{1$d:1$d}", SummarizeParsedFormat(*dx));
 }
 
 TEST_F(ParsedFormatTest, UncheckedIncorrect) {
-  EXPECT_FALSE(ExtendedParsedFormat<FormatConversionCharSet::d>::New(""));
+  EXPECT_FALSE(ExtendedParsedFormat<absl::FormatConversionCharSet::d>::New(""));
 
-  EXPECT_FALSE(
-      ExtendedParsedFormat<FormatConversionCharSet::d>::New("ABC%dDEF%d"));
+  EXPECT_FALSE(ExtendedParsedFormat<absl::FormatConversionCharSet::d>::New(
+      "ABC%dDEF%d"));
 
   std::string format = "%sFFF%dZZZ%f";
-  EXPECT_FALSE((ExtendedParsedFormat<FormatConversionCharSet::s,
-                                     FormatConversionCharSet::d,
-                                     FormatConversionCharSet::g>::New(format)));
+  EXPECT_FALSE(
+      (ExtendedParsedFormat<absl::FormatConversionCharSet::s,
+                            absl::FormatConversionCharSet::d,
+                            absl::FormatConversionCharSet::g>::New(format)));
 }
 
 TEST_F(ParsedFormatTest, RegressionMixPositional) {
   EXPECT_FALSE(
-      (ExtendedParsedFormat<FormatConversionCharSet::d,
-                            FormatConversionCharSet::o>::New("%1$d %o")));
+      (ExtendedParsedFormat<absl::FormatConversionCharSet::d,
+                            absl::FormatConversionCharSet::o>::New("%1$d %o")));
 }
 
 using FormatWrapperTest = ::testing::Test;
@@ -653,6 +706,38 @@ TEST_F(FormatWrapperTest, ParsedFormat) {
 ABSL_NAMESPACE_END
 }  // namespace absl
 
+using FormatExtensionTest = ::testing::Test;
+
+struct Point {
+  friend absl::FormatConvertResult<absl::FormatConversionCharSet::kString |
+                                   absl::FormatConversionCharSet::kIntegral>
+  AbslFormatConvert(const Point& p, const absl::FormatConversionSpec& spec,
+                    absl::FormatSink* s) {
+    if (spec.conversion_char() == absl::FormatConversionChar::s) {
+      s->Append(absl::StrCat("x=", p.x, " y=", p.y));
+    } else {
+      s->Append(absl::StrCat(p.x, ",", p.y));
+    }
+    return {true};
+  }
+
+  int x = 10;
+  int y = 20;
+};
+
+TEST_F(FormatExtensionTest, AbslFormatConvertExample) {
+  Point p;
+  EXPECT_EQ(absl::StrFormat("a %s z", p), "a x=10 y=20 z");
+  EXPECT_EQ(absl::StrFormat("a %d z", p), "a 10,20 z");
+
+  // Typed formatting will fail to compile an invalid format.
+  // StrFormat("%f", p);  // Does not compile.
+  std::string actual;
+  absl::UntypedFormatSpec f1("%f");
+  // FormatUntyped will return false for bad character.
+  EXPECT_FALSE(absl::FormatUntyped(&actual, f1, {absl::FormatArg(p)}));
+}
+
 // Some codegen thunks that we can use to easily dump the generated assembly for
 // different StrFormat calls.
 
diff --git a/chromium/third_party/abseil-cpp/absl/strings/str_split.h b/chromium/third_party/abseil-cpp/absl/strings/str_split.h
index a79cd4a0ce0..1ce17f38aa8 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/str_split.h
+++ b/chromium/third_party/abseil-cpp/absl/strings/str_split.h
@@ -44,6 +44,7 @@
 #include <vector>
 
 #include "absl/base/internal/raw_logging.h"
+#include "absl/base/macros.h"
 #include "absl/strings/internal/str_split_internal.h"
 #include "absl/strings/string_view.h"
 #include "absl/strings/strip.h"
diff --git a/chromium/third_party/abseil-cpp/absl/strings/string_view.h b/chromium/third_party/abseil-cpp/absl/strings/string_view.h
index 8a9db8c3d79..7fb03330033 100644
--- a/chromium/third_party/abseil-cpp/absl/strings/string_view.h
+++ b/chromium/third_party/abseil-cpp/absl/strings/string_view.h
@@ -586,7 +586,7 @@ constexpr bool operator>=(string_view x, string_view y) noexcept {
 }
 
 // IO Insertion Operator
-std::ostream& operator<<(std::ostream& o, string_view piece);
+ABSL_DLL std::ostream& operator<<(std::ostream& o, string_view piece);
 
 ABSL_NAMESPACE_END
 }  // namespace absl