Create base class for common functionality of Web{Local,Remote}Frame

third_party/WebKit/Source/web/WebDOMMessageEvent.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:
  *
  *     * 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 @@
 #include "public/web/WebSerializedScriptValue.h"
 #include "web/WebLocalFrameImpl.h"
 
 namespace blink {
 
 WebDOMMessageEvent::WebDOMMessageEvent(const WebSerializedScriptValue& messageData, const WebString& origin, const WebFrame* sourceFrame, const WebDocument& targetDocument, const WebMessagePortChannelArray& channels)
     : WebDOMMessageEvent(MessageEvent::create())
 {
     DOMWindow* window = nullptr;
     if (sourceFrame)
-        window = toCoreFrame(sourceFrame)->domWindow();
+        window = sourceFrame->toImplBase()->frame()->domWindow();
     MessagePortArray* ports = nullptr;
     if (!targetDocument.isNull()) {
         RefPtrWillBeRawPtr<Document> coreDocument = PassRefPtrWillBeRawPtr<Document>(targetDocument);
         ports = MessagePort::toMessagePortArray(coreDocument.get(), channels);
     }
     // Use an empty array for |ports| when it is null because this function
     // is used to implement postMessage().
     if (!ports)
         ports = new MessagePortArray;
     // TODO(esprehn): Chromium always passes empty string for lastEventId, is that right?
@@ skipping 15 matching lines @@
     MessagePortChannelArray* channels = constUnwrap<MessageEvent>()->channels();
     WebMessagePortChannelArray webChannels(channels ? channels->size() : 0);
     if (channels) {
         for (size_t i = 0; i < channels->size(); ++i)
             webChannels[i] = (*channels)[i].leakPtr();
     }
     return webChannels;
 }
 
 } // namespace blink