BASELINE: Update Chromium to 85.0.4183.14085-based

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

33 files changed, 79 insertions, 66 deletions

diff --git a/chromium/third_party/blink/renderer/core/xml/document_xpath_evaluator.cc b/chromium/third_party/blink/renderer/core/xml/document_xpath_evaluator.cc
index 7d520cd9662..c38a7b43be0 100644
--- a/chromium/third_party/blink/renderer/core/xml/document_xpath_evaluator.cc
+++ b/chromium/third_party/blink/renderer/core/xml/document_xpath_evaluator.cc
@@ -82,7 +82,7 @@ XPathResult* DocumentXPathEvaluator::evaluate(Document& document,
       expression, context_node, resolver, type, ScriptValue(), exception_state);
 }
 
-void DocumentXPathEvaluator::Trace(Visitor* visitor) {
+void DocumentXPathEvaluator::Trace(Visitor* visitor) const {
   visitor->Trace(xpath_evaluator_);
   Supplement<Document>::Trace(visitor);
 }
diff --git a/chromium/third_party/blink/renderer/core/xml/document_xpath_evaluator.h b/chromium/third_party/blink/renderer/core/xml/document_xpath_evaluator.h
index 2ec9d4603c4..c08ea5df359 100644
--- a/chromium/third_party/blink/renderer/core/xml/document_xpath_evaluator.h
+++ b/chromium/third_party/blink/renderer/core/xml/document_xpath_evaluator.h
@@ -60,7 +60,7 @@ class CORE_EXPORT DocumentXPathEvaluator final
                                ExceptionState&);
 
   explicit DocumentXPathEvaluator(Document&);
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   Member<XPathEvaluator> xpath_evaluator_;
diff --git a/chromium/third_party/blink/renderer/core/xml/document_xslt.cc b/chromium/third_party/blink/renderer/core/xml/document_xslt.cc
index 4ad397ea7a2..8fefbffd43f 100644
--- a/chromium/third_party/blink/renderer/core/xml/document_xslt.cc
+++ b/chromium/third_party/blink/renderer/core/xml/document_xslt.cc
@@ -55,7 +55,7 @@ class DOMContentLoadedListener final
 
   EventListener* ToEventListener() override { return this; }
 
-  void Trace(Visitor* visitor) override {
+  void Trace(Visitor* visitor) const override {
     visitor->Trace(processing_instruction_);
     NativeEventListener::Trace(visitor);
     ProcessingInstruction::DetachableEventListener::Trace(visitor);
@@ -165,7 +165,7 @@ DocumentXSLT& DocumentXSLT::From(Document& document) {
   return *supplement;
 }
 
-void DocumentXSLT::Trace(Visitor* visitor) {
+void DocumentXSLT::Trace(Visitor* visitor) const {
   visitor->Trace(transform_source_document_);
   Supplement<Document>::Trace(visitor);
 }
diff --git a/chromium/third_party/blink/renderer/core/xml/document_xslt.h b/chromium/third_party/blink/renderer/core/xml/document_xslt.h
index 1b9fe11caf8..4e38f26a4c6 100644
--- a/chromium/third_party/blink/renderer/core/xml/document_xslt.h
+++ b/chromium/third_party/blink/renderer/core/xml/document_xslt.h
@@ -45,7 +45,7 @@ class DocumentXSLT final : public GarbageCollected<DocumentXSLT>,
   static bool HasTransformSourceDocument(Document&);
 
   explicit DocumentXSLT(Document&);
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   Member<Document> transform_source_document_;
diff --git a/chromium/third_party/blink/renderer/core/xml/dom_parser.cc b/chromium/third_party/blink/renderer/core/xml/dom_parser.cc
index e66ec1de7c2..c7e72fde5d4 100644
--- a/chromium/third_party/blink/renderer/core/xml/dom_parser.cc
+++ b/chromium/third_party/blink/renderer/core/xml/dom_parser.cc
@@ -20,7 +20,6 @@
 #include "third_party/blink/renderer/core/xml/dom_parser.h"
 #include "third_party/blink/renderer/core/dom/document.h"
 #include "third_party/blink/renderer/core/dom/document_init.h"
-#include "third_party/blink/renderer/core/dom/dom_implementation.h"
 #include "third_party/blink/renderer/core/frame/local_dom_window.h"
 #include "third_party/blink/renderer/platform/runtime_enabled_features.h"
 #include "third_party/blink/renderer/platform/weborigin/security_origin.h"
@@ -29,13 +28,12 @@
 namespace blink {
 
 Document* DOMParser::parseFromString(const String& str, const String& type) {
-  Document* doc = DOMImplementation::createDocument(
-      DocumentInit::Create()
-          .WithURL(GetDocument()->Url())
-          .WithTypeFrom(type)
-          .WithContextDocument(GetDocument())
-          .WithOwnerDocument(GetDocument())
-          .WithContentSecurityPolicyFromContextDoc());
+  Document* doc = DocumentInit::Create()
+                      .WithURL(GetDocument()->Url())
+                      .WithTypeFrom(type)
+                      .WithExecutionContext(window_)
+                      .WithOwnerDocument(GetDocument())
+                      .CreateDocument();
   doc->SetContent(str);
   doc->SetMimeType(AtomicString(type));
   return doc;
@@ -44,7 +42,7 @@ Document* DOMParser::parseFromString(const String& str, const String& type) {
 DOMParser::DOMParser(ScriptState* script_state)
     : window_(LocalDOMWindow::From(script_state)) {}
 
-void DOMParser::Trace(Visitor* visitor) {
+void DOMParser::Trace(Visitor* visitor) const {
   visitor->Trace(window_);
   ScriptWrappable::Trace(visitor);
 }
diff --git a/chromium/third_party/blink/renderer/core/xml/dom_parser.h b/chromium/third_party/blink/renderer/core/xml/dom_parser.h
index 9bd336929f3..b4b45c8e866 100644
--- a/chromium/third_party/blink/renderer/core/xml/dom_parser.h
+++ b/chromium/third_party/blink/renderer/core/xml/dom_parser.h
@@ -42,7 +42,7 @@ class DOMParser final : public ScriptWrappable {
 
   Document* parseFromString(const String&, const String& type);
 
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
   Document* GetDocument() const;
 
diff --git a/chromium/third_party/blink/renderer/core/xml/native_xpath_ns_resolver.cc b/chromium/third_party/blink/renderer/core/xml/native_xpath_ns_resolver.cc
index 3dadcfffe3d..21bc10d815c 100644
--- a/chromium/third_party/blink/renderer/core/xml/native_xpath_ns_resolver.cc
+++ b/chromium/third_party/blink/renderer/core/xml/native_xpath_ns_resolver.cc
@@ -42,7 +42,7 @@ AtomicString NativeXPathNSResolver::lookupNamespaceURI(const String& prefix) {
   return node_ ? node_->lookupNamespaceURI(prefix) : g_null_atom;
 }
 
-void NativeXPathNSResolver::Trace(Visitor* visitor) {
+void NativeXPathNSResolver::Trace(Visitor* visitor) const {
   visitor->Trace(node_);
   XPathNSResolver::Trace(visitor);
 }
diff --git a/chromium/third_party/blink/renderer/core/xml/native_xpath_ns_resolver.h b/chromium/third_party/blink/renderer/core/xml/native_xpath_ns_resolver.h
index 0898d698bd8..1e993921ca0 100644
--- a/chromium/third_party/blink/renderer/core/xml/native_xpath_ns_resolver.h
+++ b/chromium/third_party/blink/renderer/core/xml/native_xpath_ns_resolver.h
@@ -39,7 +39,7 @@ class NativeXPathNSResolver final : public XPathNSResolver {
 
   AtomicString lookupNamespaceURI(const String& prefix) override;
 
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   Member<Node> node_;
diff --git a/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser.cc b/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser.cc
index 5de26fc1d9e..47a0718ed76 100644
--- a/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser.cc
+++ b/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser.cc
@@ -756,6 +756,7 @@ XMLDocumentParser::XMLDocumentParser(Document& document,
       requesting_script_(false),
       finish_called_(false),
       xml_errors_(&document),
+      document_(&document),
       script_runner_(frame_view
                          ? MakeGarbageCollected<XMLParserScriptRunner>(this)
                          : nullptr),  // Don't execute scripts for
@@ -783,6 +784,7 @@ XMLDocumentParser::XMLDocumentParser(DocumentFragment* fragment,
       requesting_script_(false),
       finish_called_(false),
       xml_errors_(&fragment->GetDocument()),
+      document_(&fragment->GetDocument()),
       script_runner_(nullptr),  // Don't execute scripts for document fragments.
       script_start_position_(TextPosition::BelowRangePosition()),
       parsing_fragment_(true) {
@@ -827,11 +829,12 @@ XMLParserContext::~XMLParserContext() {
 
 XMLDocumentParser::~XMLDocumentParser() = default;
 
-void XMLDocumentParser::Trace(Visitor* visitor) {
+void XMLDocumentParser::Trace(Visitor* visitor) const {
   visitor->Trace(current_node_);
   visitor->Trace(current_node_stack_);
   visitor->Trace(leaf_text_node_);
   visitor->Trace(xml_errors_);
+  visitor->Trace(document_);
   visitor->Trace(script_runner_);
   ScriptableDocumentParser::Trace(visitor);
   XMLParserScriptRunnerHost::Trace(visitor);
@@ -1011,8 +1014,8 @@ void XMLDocumentParser::StartElementNs(const AtomicString& local_name,
     q_name = QualifiedName(g_null_atom, prefix + ":" + local_name, g_null_atom);
   Element* new_element = current_node_->GetDocument().CreateElement(
       q_name,
-      parsing_fragment_ ? CreateElementFlags::ByFragmentParser()
-                        : CreateElementFlags::ByParser(),
+      parsing_fragment_ ? CreateElementFlags::ByFragmentParser(document_)
+                        : CreateElementFlags::ByParser(document_),
       is);
   if (!new_element) {
     StopParsing();
diff --git a/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser.h b/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser.h
index e832a3e7657..df3e98c9851 100644
--- a/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser.h
+++ b/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser.h
@@ -77,7 +77,7 @@ class XMLDocumentParser final : public ScriptableDocumentParser,
   explicit XMLDocumentParser(Document&, LocalFrameView* = nullptr);
   XMLDocumentParser(DocumentFragment*, Element*, ParserContentPolicy);
   ~XMLDocumentParser() override;
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
   // Exposed for callbacks:
   void HandleError(XMLErrors::ErrorType, const char* message, TextPosition);
@@ -218,6 +218,7 @@ class XMLDocumentParser final : public ScriptableDocumentParser,
 
   XMLErrors xml_errors_;
 
+  Member<Document> document_;
   Member<XMLParserScriptRunner> script_runner_;
   TextPosition script_start_position_;
 
diff --git a/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser_test.cc b/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser_test.cc
index d23e1f8c451..109ef7220e0 100644
--- a/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser_test.cc
+++ b/chromium/third_party/blink/renderer/core/xml/parser/xml_document_parser_test.cc
@@ -13,7 +13,7 @@ namespace blink {
 
 // crbug.com/932380
 TEST(XMLDocumentParserTest, NodeNamespaceWithParseError) {
-  auto& doc = *MakeGarbageCollected<Document>();
+  auto& doc = *Document::CreateForTest();
   doc.SetContent(
       "<html xmlns='http://www.w3.org/1999/xhtml'>"
       "<body><d:foo/></body></html>");
diff --git a/chromium/third_party/blink/renderer/core/xml/parser/xml_errors.cc b/chromium/third_party/blink/renderer/core/xml/parser/xml_errors.cc
index 56452f12b27..64a41f47665 100644
--- a/chromium/third_party/blink/renderer/core/xml/parser/xml_errors.cc
+++ b/chromium/third_party/blink/renderer/core/xml/parser/xml_errors.cc
@@ -45,7 +45,7 @@ XMLErrors::XMLErrors(Document* document)
       error_count_(0),
       last_error_position_(TextPosition::BelowRangePosition()) {}
 
-void XMLErrors::Trace(Visitor* visitor) {
+void XMLErrors::Trace(Visitor* visitor) const {
   visitor->Trace(document_);
 }
 
@@ -95,7 +95,7 @@ void XMLErrors::AppendErrorMessage(const String& type_string,
 static inline Element* CreateXHTMLParserErrorHeader(
     Document* doc,
     const String& error_messages) {
-  const CreateElementFlags flags = CreateElementFlags::ByParser();
+  const CreateElementFlags flags = CreateElementFlags::ByParser(doc);
   Element* report_element = doc->CreateRawElement(
       QualifiedName(g_null_atom, "parsererror", html_names::xhtmlNamespaceURI),
       flags);
@@ -135,7 +135,7 @@ void XMLErrors::InsertErrorMessageBlock() {
   // manually and includes line/col info regarding where the errors are located)
 
   // Create elements for display
-  const CreateElementFlags flags = CreateElementFlags::ByParser();
+  const CreateElementFlags flags = CreateElementFlags::ByParser(document_);
   Element* document_element = document_->documentElement();
   if (!document_element) {
     Element* root_element =
diff --git a/chromium/third_party/blink/renderer/core/xml/parser/xml_errors.h b/chromium/third_party/blink/renderer/core/xml/parser/xml_errors.h
index 7a0adf16219..8902ef81a0a 100644
--- a/chromium/third_party/blink/renderer/core/xml/parser/xml_errors.h
+++ b/chromium/third_party/blink/renderer/core/xml/parser/xml_errors.h
@@ -42,7 +42,7 @@ class XMLErrors {
 
  public:
   explicit XMLErrors(Document*);
-  void Trace(Visitor*);
+  void Trace(Visitor*) const;
 
   // Exposed for callbacks:
   enum ErrorType { kErrorTypeWarning, kErrorTypeNonFatal, kErrorTypeFatal };
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_expression.cc b/chromium/third_party/blink/renderer/core/xml/xpath_expression.cc
index 0b112519a93..9331f37a15f 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_expression.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_expression.cc
@@ -53,7 +53,7 @@ XPathExpression* XPathExpression::CreateExpression(
   return expr;
 }
 
-void XPathExpression::Trace(Visitor* visitor) {
+void XPathExpression::Trace(Visitor* visitor) const {
   visitor->Trace(top_expression_);
   ScriptWrappable::Trace(visitor);
 }
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_expression.h b/chromium/third_party/blink/renderer/core/xml/xpath_expression.h
index 76036cfd96d..faf381dbd35 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_expression.h
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_expression.h
@@ -57,7 +57,7 @@ class XPathExpression : public ScriptWrappable {
                         const ScriptValue&,
                         ExceptionState&);
 
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   Member<xpath::Expression> top_expression_;
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_expression_node.cc b/chromium/third_party/blink/renderer/core/xml/xpath_expression_node.cc
index 02b43ac7e5b..3e695507b84 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_expression_node.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_expression_node.cc
@@ -45,7 +45,7 @@ Expression::Expression()
 
 Expression::~Expression() = default;
 
-void Expression::Trace(Visitor* visitor) {
+void Expression::Trace(Visitor* visitor) const {
   visitor->Trace(sub_expressions_);
   ParseNode::Trace(visitor);
 }
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_expression_node.h b/chromium/third_party/blink/renderer/core/xml/xpath_expression_node.h
index e587ea4c224..6c24488c625 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_expression_node.h
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_expression_node.h
@@ -58,14 +58,14 @@ struct CORE_EXPORT EvaluationContext {
 class CORE_EXPORT ParseNode : public GarbageCollected<ParseNode> {
  public:
   virtual ~ParseNode() = default;
-  virtual void Trace(Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) const {}
 };
 
 class CORE_EXPORT Expression : public ParseNode {
  public:
   Expression();
   ~Expression() override;
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
   virtual Value Evaluate(EvaluationContext&) const = 0;
 
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_functions_test.cc b/chromium/third_party/blink/renderer/core/xml/xpath_functions_test.cc
index dfed2c080b9..794e042b911 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_functions_test.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_functions_test.cc
@@ -25,7 +25,7 @@ class XPathContext {
 
  public:
   XPathContext()
-      : document_(MakeGarbageCollected<Document>()),
+      : document_(Document::CreateForTest()),
         context_(*document_, had_type_conversion_error_) {}
 
   xpath::EvaluationContext& Context() { return context_; }
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_node_set.h b/chromium/third_party/blink/renderer/core/xml/xpath_node_set.h
index 7ce4c803945..3cdf9139e62 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_node_set.h
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_node_set.h
@@ -41,7 +41,7 @@ class NodeSet final : public GarbageCollected<NodeSet> {
 
   NodeSet() : is_sorted_(true), subtrees_are_disjoint_(false) {}
 
-  void Trace(Visitor* visitor) { visitor->Trace(nodes_); }
+  void Trace(Visitor* visitor) const { visitor->Trace(nodes_); }
 
   wtf_size_t size() const { return nodes_.size(); }
   bool IsEmpty() const { return !nodes_.size(); }
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_path.cc b/chromium/third_party/blink/renderer/core/xml/xpath_path.cc
index a62d43336ea..02c23e16583 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_path.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_path.cc
@@ -46,7 +46,7 @@ Filter::Filter(Expression* expr, HeapVector<Member<Predicate>>& predicates)
 
 Filter::~Filter() = default;
 
-void Filter::Trace(Visitor* visitor) {
+void Filter::Trace(Visitor* visitor) const {
   visitor->Trace(expr_);
   visitor->Trace(predicates_);
   Expression::Trace(visitor);
@@ -82,7 +82,7 @@ LocationPath::LocationPath() : absolute_(false) {
 
 LocationPath::~LocationPath() = default;
 
-void LocationPath::Trace(Visitor* visitor) {
+void LocationPath::Trace(Visitor* visitor) const {
   visitor->Trace(steps_);
   Expression::Trace(visitor);
 }
@@ -183,7 +183,7 @@ Path::Path(Expression* filter, LocationPath* path)
 
 Path::~Path() = default;
 
-void Path::Trace(Visitor* visitor) {
+void Path::Trace(Visitor* visitor) const {
   visitor->Trace(filter_);
   visitor->Trace(path_);
   Expression::Trace(visitor);
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_path.h b/chromium/third_party/blink/renderer/core/xml/xpath_path.h
index f0c6c089d59..7dc8edc6502 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_path.h
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_path.h
@@ -41,7 +41,7 @@ class Filter final : public Expression {
  public:
   Filter(Expression*, HeapVector<Member<Predicate>>&);
   ~Filter() override;
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
   Value Evaluate(EvaluationContext&) const override;
 
@@ -56,7 +56,7 @@ class LocationPath final : public Expression {
  public:
   LocationPath();
   ~LocationPath() override;
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
   Value Evaluate(EvaluationContext&) const override;
   void SetAbsolute(bool value) {
@@ -79,7 +79,7 @@ class Path final : public Expression {
  public:
   Path(Expression*, LocationPath*);
   ~Path() override;
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
   Value Evaluate(EvaluationContext&) const override;
 
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_predicate.cc b/chromium/third_party/blink/renderer/core/xml/xpath_predicate.cc
index 51eb97f7250..e94e6ddded3 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_predicate.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_predicate.cc
@@ -38,7 +38,7 @@ namespace xpath {
 
 Number::Number(double value) : value_(value) {}
 
-void Number::Trace(Visitor* visitor) {
+void Number::Trace(Visitor* visitor) const {
   visitor->Trace(value_);
   Expression::Trace(visitor);
 }
@@ -49,7 +49,7 @@ Value Number::Evaluate(EvaluationContext&) const {
 
 StringExpression::StringExpression(const String& value) : value_(value) {}
 
-void StringExpression::Trace(Visitor* visitor) {
+void StringExpression::Trace(Visitor* visitor) const {
   visitor->Trace(value_);
   Expression::Trace(visitor);
 }
@@ -262,7 +262,7 @@ Value Union::Evaluate(EvaluationContext& context) const {
 
 Predicate::Predicate(Expression* expr) : expr_(expr) {}
 
-void Predicate::Trace(Visitor* visitor) {
+void Predicate::Trace(Visitor* visitor) const {
   visitor->Trace(expr_);
 }
 
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_predicate.h b/chromium/third_party/blink/renderer/core/xml/xpath_predicate.h
index a9846d6646b..f6b47e8bf4e 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_predicate.h
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_predicate.h
@@ -39,7 +39,7 @@ namespace xpath {
 class CORE_EXPORT Number final : public Expression {
  public:
   explicit Number(double);
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   Value Evaluate(EvaluationContext&) const override;
@@ -51,7 +51,7 @@ class CORE_EXPORT Number final : public Expression {
 class CORE_EXPORT StringExpression final : public Expression {
  public:
   explicit StringExpression(const String&);
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   Value Evaluate(EvaluationContext&) const override;
@@ -120,7 +120,7 @@ class Union final : public Expression {
 class Predicate final : public GarbageCollected<Predicate> {
  public:
   explicit Predicate(Expression*);
-  void Trace(Visitor*);
+  void Trace(Visitor*) const;
 
   bool Evaluate(EvaluationContext&) const;
   bool IsContextPositionSensitive() const {
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_result.cc b/chromium/third_party/blink/renderer/core/xml/xpath_result.cc
index 659e8d30604..9c0e7f58f29 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_result.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_result.cc
@@ -57,7 +57,7 @@ XPathResult::XPathResult(xpath::EvaluationContext& context,
   NOTREACHED();
 }
 
-void XPathResult::Trace(Visitor* visitor) {
+void XPathResult::Trace(Visitor* visitor) const {
   visitor->Trace(value_);
   visitor->Trace(node_set_);
   visitor->Trace(document_);
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_result.h b/chromium/third_party/blink/renderer/core/xml/xpath_result.h
index 5d8de537cd2..06dd4538f52 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_result.h
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_result.h
@@ -77,7 +77,7 @@ class XPathResult final : public ScriptWrappable {
 
   const xpath::Value& GetValue() const { return value_; }
 
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   xpath::NodeSet& GetNodeSet() { return *node_set_; }
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_step.cc b/chromium/third_party/blink/renderer/core/xml/xpath_step.cc
index 1c816c3bab0..bf7cc05093d 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_step.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_step.cc
@@ -51,7 +51,7 @@ Step::Step(Axis axis,
 
 Step::~Step() = default;
 
-void Step::Trace(Visitor* visitor) {
+void Step::Trace(Visitor* visitor) const {
   visitor->Trace(node_test_);
   visitor->Trace(predicates_);
   ParseNode::Trace(visitor);
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_step.h b/chromium/third_party/blink/renderer/core/xml/xpath_step.h
index 44c844188db..5d03a5437bf 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_step.h
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_step.h
@@ -85,7 +85,7 @@ class Step final : public ParseNode {
       DCHECK(o.merged_predicates_.IsEmpty());
       return *this;
     }
-    void Trace(Visitor* visitor) { visitor->Trace(merged_predicates_); }
+    void Trace(Visitor* visitor) const { visitor->Trace(merged_predicates_); }
 
     Kind GetKind() const { return kind_; }
     const AtomicString& Data() const { return data_; }
@@ -110,7 +110,7 @@ class Step final : public ParseNode {
   Step(Axis, const NodeTest&);
   Step(Axis, const NodeTest&, HeapVector<Member<Predicate>>&);
   ~Step() override;
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
   void Optimize();
 
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_value.cc b/chromium/third_party/blink/renderer/core/xml/xpath_value.cc
index cafef7929f8..84b3e4dba55 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_value.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_value.cc
@@ -38,11 +38,11 @@ namespace xpath {
 
 const Value::AdoptTag Value::kAdopt = {};
 
-void ValueData::Trace(Visitor* visitor) {
+void ValueData::Trace(Visitor* visitor) const {
   visitor->Trace(node_set_);
 }
 
-void Value::Trace(Visitor* visitor) {
+void Value::Trace(Visitor* visitor) const {
   visitor->Trace(data_);
 }
 
diff --git a/chromium/third_party/blink/renderer/core/xml/xpath_value.h b/chromium/third_party/blink/renderer/core/xml/xpath_value.h
index b10c629adce..6a25218cabf 100644
--- a/chromium/third_party/blink/renderer/core/xml/xpath_value.h
+++ b/chromium/third_party/blink/renderer/core/xml/xpath_value.h
@@ -46,7 +46,7 @@ class ValueData final : public GarbageCollected<ValueData> {
   explicit ValueData(const String& string)
       : string_(string), node_set_(NodeSet::Create()) {}
 
-  void Trace(Visitor*);
+  void Trace(Visitor*) const;
   NodeSet& GetNodeSet() { return *node_set_; }
 
   String string_;
@@ -89,7 +89,7 @@ class CORE_EXPORT Value {
         data_(MakeGarbageCollected<ValueData>()) {
     data_->GetNodeSet().Append(value);
   }
-  void Trace(Visitor*);
+  void Trace(Visitor*) const;
 
   // This is needed to safely implement constructing from bool - with normal
   // function overloading, any pointer type would match.
diff --git a/chromium/third_party/blink/renderer/core/xml/xsl_style_sheet.h b/chromium/third_party/blink/renderer/core/xml/xsl_style_sheet.h
index 18da053f9c2..de3667e5c3c 100644
--- a/chromium/third_party/blink/renderer/core/xml/xsl_style_sheet.h
+++ b/chromium/third_party/blink/renderer/core/xml/xsl_style_sheet.h
@@ -82,7 +82,7 @@ class XSLStyleSheet final : public StyleSheet {
   KURL BaseURL() const override { return final_url_; }
   bool IsLoading() const override { return false; }
 
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   void LoadChildSheets();
diff --git a/chromium/third_party/blink/renderer/core/xml/xsl_style_sheet_libxslt.cc b/chromium/third_party/blink/renderer/core/xml/xsl_style_sheet_libxslt.cc
index 23f535941d8..5376241322b 100644
--- a/chromium/third_party/blink/renderer/core/xml/xsl_style_sheet_libxslt.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xsl_style_sheet_libxslt.cc
@@ -321,7 +321,7 @@ void XSLStyleSheet::MarkAsProcessed() {
   stylesheet_doc_taken_ = true;
 }
 
-void XSLStyleSheet::Trace(Visitor* visitor) {
+void XSLStyleSheet::Trace(Visitor* visitor) const {
   visitor->Trace(owner_node_);
   visitor->Trace(children_);
   visitor->Trace(parent_style_sheet_);
diff --git a/chromium/third_party/blink/renderer/core/xml/xslt_processor.cc b/chromium/third_party/blink/renderer/core/xml/xslt_processor.cc
index 49782f0c144..1549d0a44e6 100644
--- a/chromium/third_party/blink/renderer/core/xml/xslt_processor.cc
+++ b/chromium/third_party/blink/renderer/core/xml/xslt_processor.cc
@@ -25,7 +25,6 @@
 #include "third_party/blink/renderer/core/dom/document_encoding_data.h"
 #include "third_party/blink/renderer/core/dom/document_fragment.h"
 #include "third_party/blink/renderer/core/dom/document_init.h"
-#include "third_party/blink/renderer/core/dom/dom_implementation.h"
 #include "third_party/blink/renderer/core/dom/ignore_opens_during_unload_count_incrementer.h"
 #include "third_party/blink/renderer/core/editing/serializers/serialization.h"
 #include "third_party/blink/renderer/core/frame/csp/content_security_policy.h"
@@ -35,6 +34,7 @@
 #include "third_party/blink/renderer/core/frame/local_frame_view.h"
 #include "third_party/blink/renderer/core/html/html_document.h"
 #include "third_party/blink/renderer/core/html/html_frame_owner_element.h"
+#include "third_party/blink/renderer/core/inspector/console_message.h"
 #include "third_party/blink/renderer/core/xml/document_xslt.h"
 #include "third_party/blink/renderer/platform/weborigin/security_origin.h"
 #include "third_party/blink/renderer/platform/wtf/assertions.h"
@@ -68,6 +68,9 @@ Document* XSLTProcessor::CreateDocumentFromSource(
     const String& source_mime_type,
     Node* source_node,
     LocalFrame* frame) {
+  if (!source_node->GetExecutionContext())
+    return nullptr;
+
   KURL url = NullURL();
   Document* owner_document = &source_node->GetDocument();
   if (owner_document == source_node)
@@ -100,13 +103,21 @@ Document* XSLTProcessor::CreateDocumentFromSource(
       DocumentInit::Create()
           .WithURL(url)
           .WithTypeFrom(mime_type)
-          .WithContextDocument(owner_document->ContextDocument());
-  Document* document = DOMImplementation::createDocument(init);
-  DocumentEncodingData data;
-  data.SetEncoding(source_encoding.IsEmpty()
-                       ? UTF8Encoding()
-                       : WTF::TextEncoding(source_encoding));
-  document->SetEncodingData(data);
+          .WithExecutionContext(owner_document->GetExecutionContext());
+  Document* document = init.CreateDocument();
+  auto parsed_source_encoding = source_encoding.IsEmpty()
+                                    ? UTF8Encoding()
+                                    : WTF::TextEncoding(source_encoding);
+  if (parsed_source_encoding.IsValid()) {
+    DocumentEncodingData data;
+    data.SetEncoding(parsed_source_encoding);
+    document->SetEncodingData(data);
+  } else {
+    document_->AddConsoleMessage(MakeGarbageCollected<ConsoleMessage>(
+        mojom::blink::ConsoleMessageSource::kXml,
+        mojom::blink::ConsoleMessageLevel::kWarning,
+        String("Document encoding not valid: ") + source_encoding));
+  }
   document->SetContent(document_source);
   return document;
 }
@@ -166,7 +177,7 @@ void XSLTProcessor::reset() {
   parameters_.clear();
 }
 
-void XSLTProcessor::Trace(Visitor* visitor) {
+void XSLTProcessor::Trace(Visitor* visitor) const {
   visitor->Trace(stylesheet_);
   visitor->Trace(stylesheet_root_node_);
   visitor->Trace(document_);
diff --git a/chromium/third_party/blink/renderer/core/xml/xslt_processor.h b/chromium/third_party/blink/renderer/core/xml/xslt_processor.h
index 2030e632e54..e501cf17c37 100644
--- a/chromium/third_party/blink/renderer/core/xml/xslt_processor.h
+++ b/chromium/third_party/blink/renderer/core/xml/xslt_processor.h
@@ -87,7 +87,7 @@ class XSLTProcessor final : public ScriptWrappable {
 
   typedef HashMap<String, String> ParameterMap;
 
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   Member<XSLStyleSheet> stylesheet_;