Remove calls to HandleScope default ctor.

Source/bindings/v8/V8Binding.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 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 572 matching lines @@
     ASSERT(v8::Context::InContext());
     return DOMWrapperWorld::isolatedWorld(v8::Context::GetCurrent());
 }
 
 v8::Local<v8::Value> getHiddenValueFromMainWorldWrapper(v8::Isolate* isolate, ScriptWrappable* wrappable, v8::Handle<v8::String> key)
 {
     v8::Local<v8::Object> wrapper = wrappable->newLocalWrapper(isolate);
     return wrapper.IsEmpty() ? v8::Local<v8::Value>() : wrapper->GetHiddenValue(key);
 }
 
+v8::Isolate* getIsolateFromScriptExecutionContext(ScriptExecutionContext* context)
+{
+    ASSERT(context);
+    if (context->isDocument()) {
+        static v8::Isolate* mainWorldIsolate = 0;
+        if (!mainWorldIsolate)
+            mainWorldIsolate = v8::Isolate::GetCurrent();
+        return mainWorldIsolate;
+    }
+    return v8::Isolate::GetCurrent();
+}
+
 } // namespace WebCore