Avoid calling v8::Isolate::GetCurrent() twice in V8HiddenPropertyName

Source/bindings/v8/V8HiddenPropertyName.cpp

 /*
  * 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 31 matching lines @@
 #define V8_AS_STRING_IMPL(x) #x
 
 #define V8_HIDDEN_PROPERTY_PREFIX "WebCore::HiddenProperty::"
 
 #define V8_DEFINE_HIDDEN_PROPERTY(name) \
 v8::Handle<v8::String> V8HiddenPropertyName::name() \
 { \
     v8::Isolate* isolate = v8::Isolate::GetCurrent(); \
     V8HiddenPropertyName* hiddenPropertyName = V8PerIsolateData::from(isolate)->hiddenPropertyName(); \
     if (hiddenPropertyName->m_##name.IsEmpty()) { \
-        createString(V8_HIDDEN_PROPERTY_PREFIX V8_AS_STRING(name), &(hiddenPropertyName->m_##name)); \
+        createString(V8_HIDDEN_PROPERTY_PREFIX V8_AS_STRING(name), &(hiddenPropertyName->m_##name), isolate); \
     } \
     return v8::Local<v8::String>::New(isolate, hiddenPropertyName->m_##name); \
 }
 
 V8_HIDDEN_PROPERTIES(V8_DEFINE_HIDDEN_PROPERTY);
 
 static v8::Handle<v8::String> hiddenReferenceName(const char* name, unsigned length)
 {
     ASSERT(length);
     Vector<char, 64> prefixedName;
     prefixedName.append(V8_HIDDEN_PROPERTY_PREFIX, sizeof(V8_HIDDEN_PROPERTY_PREFIX) - 1);
     prefixedName.append(name, length);
     return v8::String::NewSymbol(prefixedName.data(), static_cast<int>(prefixedName.size()));
 }
 
 void V8HiddenPropertyName::setNamedHiddenReference(v8::Handle<v8::Object> parent, const char* name, v8::Handle<v8::Value> child)
 {
     ASSERT(name);
     parent->SetHiddenValue(hiddenReferenceName(name, strlen(name)), child);
 }
 
-void V8HiddenPropertyName::createString(const char* key, v8::Persistent<v8::String>* handle)
+void V8HiddenPropertyName::createString(const char* key, v8::Persistent<v8::String>* handle, v8::Isolate* isolate)
 {
-    v8::Isolate* isolate = v8::Isolate::GetCurrent();
     v8::HandleScope scope(isolate);
     handle->Reset(isolate, v8::String::NewSymbol(key));
 }
 
 }  // namespace WebCore