Nuked WebFrameImplBase.

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 34 matching lines @@
 
 WebDOMMessageEvent::WebDOMMessageEvent(
     const WebSerializedScriptValue& message_data,
     const WebString& origin,
     const WebFrame* source_frame,
     const WebDocument& target_document,
     WebMessagePortChannelArray channels)
     : WebDOMMessageEvent(MessageEvent::Create()) {
   DOMWindow* window = nullptr;
   if (source_frame)
-    window = source_frame->ToImplBase()->GetFrame()->DomWindow();
+    window = WebFrame::ToCoreFrame(*source_frame)->DomWindow();
   MessagePortArray* ports = nullptr;
   if (!target_document.IsNull()) {
     Document* core_document = target_document;
     ports = MessagePort::ToMessagePortArray(core_document, std::move(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
@@ skipping 14 matching lines @@
 
 WebMessagePortChannelArray WebDOMMessageEvent::ReleaseChannels() {
   MessagePortChannelArray channels = Unwrap<MessageEvent>()->ReleaseChannels();
   WebMessagePortChannelArray web_channels(channels.size());
   for (size_t i = 0; i < channels.size(); ++i)
     web_channels[i] = std::move(channels[i]);
   return web_channels;
 }
 
 }  // namespace blink