[bindings] Migrate V8TestingScope out of V8Binding.h/cpp

Source/bindings/core/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 934 matching lines @@
                 return nullptr;
             TOSTRING_DEFAULT(V8StringResource<TreatNullAsNullString>, nameString, name, nullptr);
             jsonObject->setValue(nameString, propertyValue);
         }
         return jsonObject;
     }
     ASSERT_NOT_REACHED();
     return nullptr;
 }
 
-V8TestingScope::V8TestingScope(v8::Isolate* isolate)
-    : m_handleScope(isolate)
-    , m_contextScope(v8::Context::New(isolate))
-    // We reuse the main world since the main world is guaranteed to be registered to ScriptController.
-    , m_scriptState(ScriptStateForTesting::create(isolate->GetCurrentContext(), &DOMWrapperWorld::mainWorld()))
-{
-}
-
-V8TestingScope::~V8TestingScope()
-{
-    m_scriptState->disposePerContextData();
-}
-
-ScriptState* V8TestingScope::scriptState() const
-{
-    return m_scriptState.get();
-}
-
-v8::Isolate* V8TestingScope::isolate() const
-{
-    return m_scriptState->isolate();
-}
-
 void DevToolsFunctionInfo::ensureInitialized() const
 {
     if (m_function.IsEmpty())
         return;
 
     v8::Handle<v8::Function> originalFunction = getBoundFunction(m_function);
     m_scriptId = originalFunction->ScriptId();
     v8::ScriptOrigin origin = originalFunction->GetScriptOrigin();
     if (!origin.ResourceName().IsEmpty()) {
         V8StringResource<> stringResource(origin.ResourceName());
@@ skipping 37 matching lines @@
 {
     v8ConstructorAttributeGetter(info);
 }
 
 void v8ConstructorAttributeGetterAsAccessor(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     v8ConstructorAttributeGetter(info);
 }
 
 } // namespace blink