Rename isolateFor*() utility functions to toIsolate()

Source/bindings/v8/DOMRequestState.h

 /*
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 21 matching lines @@
 #include "v8.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class DOMRequestState {
 public:
     explicit DOMRequestState(ScriptExecutionContext* scriptExecutionContext)
         : m_scriptExecutionContext(scriptExecutionContext)
         , m_world(DOMWrapperWorld::current())
-        , m_isolate(isolateForScriptExecutionContext(scriptExecutionContext))
+        , m_isolate(toIsolate(scriptExecutionContext))
     {
     }
 
     void clear()
     {
         m_scriptExecutionContext = 0;
         m_world.clear();
     }
 
     class Scope {
@@ skipping 19 matching lines @@
     }
 
 private:
     ScriptExecutionContext* m_scriptExecutionContext;
     RefPtr<DOMWrapperWorld> m_world;
     v8::Isolate* m_isolate;
 };
 
 }
 #endif