Pause HTML parser for external stylesheets in the body

third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h

Index: third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h b/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
index 108fdac2e628b4e9ec3992d9bf73dbbf3fd8631c..c38eb5314cb6615ea967100310c98e3d495fb0e9 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
+++ b/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
@@ -172,6 +172,8 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   bool isWaitingForScripts() const final;
   bool isExecutingScript() const final;
   void executeScriptsWaitingForResources() final;
+  void didAddPendingStylesheetInBody() final;
+  void didLoadAllStylesheets() final;
   void documentElementAvailable() override;
 
   // HTMLParserScriptRunnerHost
@@ -200,7 +202,7 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   void constructTreeFromCompactHTMLToken(const CompactHTMLToken&);
 
   void runScriptsForPausedTreeBuilder();
-  void resumeParsingAfterScriptExecution();
+  void resumeParsingAfterPause();
 
   void attemptToEnd();
   void endIfDelayed();
@@ -265,10 +267,10 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   XSSAuditor m_xssAuditor;
   XSSAuditorDelegate m_xssAuditorDelegate;
 
-  // FIXME: m_lastChunkBeforeScript, m_tokenizer, m_token, and m_input should be
+  // FIXME: m_lastChunkBeforePause, m_tokenizer, m_token, and m_input should be
   // combined into a single state object so they can be set and cleared together
   // and passed between threads together.
-  std::unique_ptr<TokenizedChunk> m_lastChunkBeforeScript;
+  std::unique_ptr<TokenizedChunk> m_lastChunkBeforePause;
   Deque<std::unique_ptr<TokenizedChunk>> m_speculations;
   WeakPtrFactory<HTMLDocumentParser> m_weakFactory;
   WeakPtr<BackgroundHTMLParser> m_backgroundParser;
@@ -286,6 +288,8 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   // would require keeping track of token positions of preload requests.
   CompactHTMLToken* m_pendingCSPMetaToken;
 
+  TaskHandle m_resumeParsingTaskHandle;
+
   bool m_shouldUseThreading;
   bool m_endWasDelayed;
   bool m_haveBackgroundParser;
@@ -294,6 +298,8 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   unsigned m_pumpSpeculationsSessionNestingLevel;
   bool m_isParsingAtLineNumber;
   bool m_triedLoadingLinkHeaders;
+  bool m_addedPendingStylesheetInBody;
+  bool m_isWaitingForStylesheets;
 };
 
 }  // namespace blink