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

Source/bindings/modules/v8/V8BindingForModulesTest.cpp

 /*
  * Copyright (C) 2011 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 10 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "bindings/modules/v8/V8BindingForModules.h"
 
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8PerIsolateData.h"
+#include "bindings/core/v8/V8TestingScope.h"
 #include "bindings/modules/v8/ToV8ForModules.h"
 #include "modules/indexeddb/IDBKey.h"
 #include "modules/indexeddb/IDBKeyPath.h"
 #include <gtest/gtest.h>
 
 using namespace blink;
 
 namespace {
 
 IDBKey* checkKeyFromValueAndKeyPathInternal(v8::Isolate* isolate, const ScriptValue& value, const String& keyPath)
@@ skipping 127 matching lines @@
     checkInjection(scriptState(), IDBKey::createDate(4567), scriptObject, "foo.baz");
     checkInjection(scriptState(), IDBKey::createDate(4567), scriptObject, "bar");
     checkInjection(scriptState(), IDBKey::createArray(IDBKey::KeyArray()), scriptObject, "foo.baz");
     checkInjection(scriptState(), IDBKey::createArray(IDBKey::KeyArray()), scriptObject, "bar");
 
     checkInjectionFails(scriptState(), IDBKey::createString("zoo"), scriptObject, "foo.bar.baz");
     checkInjection(scriptState(), IDBKey::createString("zoo"), scriptObject, "foo.xyz.foo");
 }
 
 } // namespace