Revert of Revert "Post loading tasks on the appropriate WebFrameScheduler's queue."

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 6922c310f9bd1f8fe0f96648f79ad7e3cbc0b370..d3f7c8e35122cac3318346fca2af5c60637cc812 100644
--- a/third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.h
+++ b/third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.h
@@ -42,7 +42,7 @@
 
 class HTMLDocumentParser;
 class XSSAuditor;
-class WebScheduler;
+class WebTaskRunner;
 
 class BackgroundHTMLParser {
     WTF_MAKE_FAST_ALLOCATED(BackgroundHTMLParser);
@@ -63,7 +63,7 @@
         size_t pendingTokenLimit;
     };
 
-    static void start(PassRefPtr<WeakReference<BackgroundHTMLParser>>, PassOwnPtr<Configuration>, WebScheduler*);
+    static void start(PassRefPtr<WeakReference<BackgroundHTMLParser>>, PassOwnPtr<Configuration>, PassOwnPtr<WebTaskRunner>);
 
     struct Checkpoint {
         WTF_MAKE_FAST_ALLOCATED(CheckPoint);
@@ -90,7 +90,7 @@
     void forcePlaintextForTextDocument();
 
 private:
-    BackgroundHTMLParser(PassRefPtr<WeakReference<BackgroundHTMLParser>>, PassOwnPtr<Configuration>, WebScheduler*);
+    BackgroundHTMLParser(PassRefPtr<WeakReference<BackgroundHTMLParser>>, PassOwnPtr<Configuration>, PassOwnPtr<WebTaskRunner>);
     ~BackgroundHTMLParser();
 
     void appendDecodedBytes(const String&);
@@ -118,7 +118,7 @@
     OwnPtr<TokenPreloadScanner> m_preloadScanner;
     OwnPtr<TextResourceDecoder> m_decoder;
     DocumentEncodingData m_lastSeenEncodingData;
-    WebScheduler* m_scheduler; // NOT OWNED, scheduler will outlive BackgroundHTMLParser
+    OwnPtr<WebTaskRunner> m_loadingTaskRunner;
 
     bool m_startingScript;
 };