1 files changed, 17 insertions, 0 deletions
diff --git a/chromium/net/quiche/common/platform/impl/quiche_text_utils_impl.h b/chromium/net/quiche/common/platform/impl/quiche_text_utils_impl.h
index 037d5827a08..8f52eaf0fd6 100644
--- a/chromium/net/quiche/common/platform/impl/quiche_text_utils_impl.h
+++ b/chromium/net/quiche/common/platform/impl/quiche_text_utils_impl.h
@@ -7,6 +7,7 @@
 
 #include <algorithm>
 #include <cstdint>
+#include <sstream>
 #include <string>
 #include <vector>
 
@@ -17,6 +18,7 @@
 #include "base/strings/stringprintf.h"
 #include "net/base/hex_utils.h"
 #include "net/base/parse_number.h"
+#include "net/third_party/quiche/src/common/platform/api/quiche_optional.h"
 #include "net/third_party/quiche/src/common/platform/api/quiche_string_piece.h"
 
 namespace quiche {
@@ -29,6 +31,11 @@ class QuicheTextUtilsImpl {
     return base::StartsWith(data, prefix, base::CompareCase::SENSITIVE);
   }
 
+  // Returns true if |data| end with |suffix|, case sensitively.
+  static bool EndsWith(QuicheStringPiece data, QuicheStringPiece suffix) {
+    return base::EndsWith(data, suffix, base::CompareCase::SENSITIVE);
+  }
+
   // Returns true of |data| ends with |suffix|, case insensitively.
   static bool EndsWithIgnoreCase(QuicheStringPiece data,
                                  QuicheStringPiece suffix) {
@@ -115,6 +122,16 @@ class QuicheTextUtilsImpl {
     }
   }
 
+  // Decodes a base64-encoded |input|.  Returns nullopt when the input is
+  // invalid.
+  static QuicheOptional<std::string> Base64Decode(QuicheStringPiece input) {
+    std::string output;
+    if (!base::Base64Decode(input, &output)) {
+      return QuicheOptional<std::string>();
+    }
+    return output;
+  }
+
   // Returns a std::string containing hex and ASCII representations of |binary|,
   // side-by-side in the style of hexdump. Non-printable characters will be
   // printed as '.' in the ASCII output.