Introduce an injection point to configure the internal pointer of WeakPtr

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

Index: third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.h
diff --git a/third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.h b/third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.h
index 37583acce7df0f280c95f2abb55d7c1ed45c8cad..4f602dd3d3cfa4dda9d24c8aca149383c6e3f42b 100644
--- a/third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.h
+++ b/third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.h
@@ -54,7 +54,7 @@ public:
     public:
         Configuration();
         HTMLParserOptions options;
-        WeakPtr<HTMLDocumentParser> parser;
+        RevocableCrossThreadWeakPersistent<HTMLDocumentParser> parser;
         std::unique_ptr<XSSAuditor> xssAuditor;
         std::unique_ptr<TextResourceDecoder> decoder;
         RefPtr<TokenizedChunkQueue> tokenizedChunkQueue;
@@ -74,7 +74,7 @@ public:
     struct Checkpoint {
         USING_FAST_MALLOC(Checkpoint);
     public:
-        WeakPtr<HTMLDocumentParser> parser;
+        RevocableCrossThreadWeakPersistent<HTMLDocumentParser> parser;
         std::unique_ptr<HTMLToken> token;
         std::unique_ptr<HTMLTokenizer> tokenizer;
         HTMLTreeBuilderSimulator::State treeBuilderState;
@@ -118,7 +118,7 @@ private:
     HTMLTreeBuilderSimulator m_treeBuilderSimulator;
     HTMLParserOptions m_options;
     const size_t m_outstandingTokenLimit;
-    WeakPtr<HTMLDocumentParser> m_parser;
+    RevocableCrossThreadWeakPersistent<HTMLDocumentParser> m_parser;
 
     std::unique_ptr<CompactHTMLTokenStream> m_pendingTokens;
     const size_t m_pendingTokenLimit;