Use mayNotBeMainThread() for wrapper optimization

third_party/WebKit/Source/bindings/core/v8/V8DOMWrapper.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 24 matching lines @@
 #include "bindings/core/v8/DOMDataStore.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "core/CoreExport.h"
 #include "v8/include/v8.h"
 #include "wtf/Compiler.h"
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 
-class Node;
 struct WrapperTypeInfo;
 
 class V8DOMWrapper {
   STATIC_ONLY(V8DOMWrapper);
 
  public:
   static v8::Local<v8::Object> createWrapper(
       v8::Isolate*,
       v8::Local<v8::Object> creationContext,
       const WrapperTypeInfo*);
   static bool isWrapper(v8::Isolate*, v8::Local<v8::Value>);
 
   // Associates the given ScriptWrappable with the given |wrapper| if the
   // ScriptWrappable is not yet associated with any wrapper.  Returns the
   // wrapper already associated or |wrapper| if not yet associated.
   // The caller should always use the returned value rather than |wrapper|.
   WARN_UNUSED_RESULT static v8::Local<v8::Object> associateObjectWithWrapper(
       v8::Isolate*,
       ScriptWrappable*,
       const WrapperTypeInfo*,
       v8::Local<v8::Object> wrapper);
-  WARN_UNUSED_RESULT static v8::Local<v8::Object> associateObjectWithWrapper(
-      v8::Isolate*,
-      Node*,
-      const WrapperTypeInfo*,
-      v8::Local<v8::Object> wrapper);
   static void setNativeInfo(v8::Isolate*,
                             v8::Local<v8::Object>,
                             const WrapperTypeInfo*,
                             ScriptWrappable*);
   static void clearNativeInfo(v8::Isolate*, v8::Local<v8::Object>);
 
   // hasInternalFieldsSet only checks if the value has the internal fields for
   // wrapper obejct and type, and does not check if it's valid or not.  The
   // value may not be a Blink's wrapper object.  In order to make sure of it,
   // Use isWrapper function instead.
@@ skipping 36 matching lines @@
     v8::Local<v8::Object> wrapper) {
   if (DOMDataStore::setWrapper(isolate, impl, wrapperTypeInfo, wrapper)) {
     wrapperTypeInfo->wrapperCreated();
     setNativeInfo(isolate, wrapper, wrapperTypeInfo, impl);
     ASSERT(hasInternalFieldsSet(wrapper));
   }
   SECURITY_CHECK(toScriptWrappable(wrapper) == impl);
   return wrapper;
 }
 
-inline v8::Local<v8::Object> V8DOMWrapper::associateObjectWithWrapper(
-    v8::Isolate* isolate,
-    Node* node,
-    const WrapperTypeInfo* wrapperTypeInfo,
-    v8::Local<v8::Object> wrapper) {
-  if (DOMDataStore::setWrapper(isolate, node, wrapperTypeInfo, wrapper)) {
-    wrapperTypeInfo->wrapperCreated();
-    setNativeInfo(isolate, wrapper, wrapperTypeInfo,
-                  ScriptWrappable::fromNode(node));
-    ASSERT(hasInternalFieldsSet(wrapper));
-  }
-  SECURITY_CHECK(toScriptWrappable(wrapper) == ScriptWrappable::fromNode(node));
-  return wrapper;
-}
-
 class V8WrapperInstantiationScope {
   STACK_ALLOCATED();
 
  public:
   V8WrapperInstantiationScope(v8::Local<v8::Object> creationContext,
                               v8::Isolate* isolate,
                               bool withSecurityCheck)
       : m_didEnterContext(false),
         m_context(isolate->GetCurrentContext()),
         m_tryCatch(isolate),
@@ skipping 43 matching lines @@
 
   bool m_didEnterContext;
   v8::Local<v8::Context> m_context;
   v8::TryCatch m_tryCatch;
   bool m_convertExceptions;
 };
 
 }  // namespace blink
 
 #endif  // V8DOMWrapper_h