Make Isolate as the first argument.

Source/bindings/core/v8/V8ValueCache.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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 49 matching lines @@
     static void DisposeWeak(const v8::WeakCallbackInfo<WeakCallbackDataType>&);
 };
 
 
 class CORE_EXPORT StringCache {
     WTF_MAKE_NONCOPYABLE(StringCache);
 public:
     StringCache(v8::Isolate* isolate) : m_stringCache(isolate) { }
     ~StringCache();
 
-    v8::Local<v8::String> v8ExternalString(StringImpl* stringImpl, v8::Isolate* isolate)
+    v8::Local<v8::String> v8ExternalString(v8::Isolate* isolate, StringImpl* stringImpl)
     {
         ASSERT(stringImpl);
         if (m_lastStringImpl.get() == stringImpl)
             return m_lastV8String.NewLocal(isolate);
         return v8ExternalStringSlow(isolate, stringImpl);
     }
 
     void setReturnValueFromString(v8::ReturnValue<v8::Value> returnValue, StringImpl* stringImpl)
     {
         ASSERT(stringImpl);
@@ skipping 16 matching lines @@
 
     // Note: RefPtr is a must as we cache by StringImpl* equality, not identity
     // hence lastStringImpl might be not a key of the cache (in sense of identity)
     // and hence it's not refed on addition.
     RefPtr<StringImpl> m_lastStringImpl;
 };
 
 } // namespace blink
 
 #endif // V8ValueCache_h