Revert "Oilpan: Support the HTML parser thread in oilpan"

Source/core/html/parser/HTMLParserThread.h

Index: Source/core/html/parser/HTMLParserThread.h
diff --git a/Source/core/html/parser/HTMLParserThread.h b/Source/core/html/parser/HTMLParserThread.h
index 1421e0dacc5dc236a406d9a7666552cf9dc86f13..1feb999166443ea7d96874bbd24895acc56a7c6b 100644
--- a/Source/core/html/parser/HTMLParserThread.h
+++ b/Source/core/html/parser/HTMLParserThread.h
@@ -31,16 +31,12 @@
 #ifndef HTMLParserThread_h
 #define HTMLParserThread_h
 
-#include "heap/glue/MessageLoopInterruptor.h"
-#include "heap/glue/PendingGCRunner.h"
-#include "public/platform/WebThread.h"
 #include "wtf/Functional.h"
 #include "wtf/OwnPtr.h"
+#include "public/platform/WebThread.h"
 
 namespace WebCore {
 
-class TaskSynchronizer;
-
 class HTMLParserThread {
 public:
     static void init();
@@ -55,12 +51,8 @@ public:
 private:
     HTMLParserThread();
     ~HTMLParserThread();
-    void setupHTMLParserThread();
-    void cleanupHTMLParserThread(TaskSynchronizer*);
 
     OwnPtr<blink::WebThread> m_thread;
-    OwnPtr<PendingGCRunner> m_pendingGCRunner;
-    OwnPtr<MessageLoopInterruptor> m_messageLoopInterruptor;
 };
 
 } // namespace WebCore