[bindings] Refactor ScriptStateForTesting, V8TestingScope into V8BindingForTesting.h/cpp

Source/bindings/core/v8/ScriptState.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "bindings/core/v8/ScriptState.h"
 
 #include "bindings/core/v8/V8Binding.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/LocalDOMWindow.h"
@@ skipping 98 matching lines @@
     return toLocalDOMWindow(toDOMWindow(context()));
 }
 
 ScriptState* ScriptState::forMainWorld(LocalFrame* frame)
 {
     v8::Isolate* isolate = toIsolate(frame);
     v8::HandleScope handleScope(isolate);
     return ScriptState::from(toV8Context(frame, DOMWrapperWorld::mainWorld()));
 }
 
-PassRefPtr<ScriptStateForTesting> ScriptStateForTesting::create(v8::Handle<v8::Context> context, PassRefPtr<DOMWrapperWorld> world)
-{
-    RefPtr<ScriptStateForTesting> scriptState = adoptRef(new ScriptStateForTesting(context, world));
-    // This ref() is for keeping this ScriptState alive as long as the v8::Context is alive.
-    // This is deref()ed in the weak callback of the v8::Context.
-    scriptState->ref();
-    return scriptState;
 }
-
-ScriptStateForTesting::ScriptStateForTesting(v8::Handle<v8::Context> context, PassRefPtr<DOMWrapperWorld> world)
-    : ScriptState(context, world)
-{
-}
-
-ExecutionContext* ScriptStateForTesting::executionContext() const
-{
-    return m_executionContext;
-}
-
-void ScriptStateForTesting::setExecutionContext(ExecutionContext* executionContext)
-{
-    m_executionContext = executionContext;
-}
-
-}