Update WebLocalFrameImpl with WebLocalFrameBase to break dependencies.

third_party/WebKit/Source/web/WebLocalFrameImpl.h

 /*
  * Copyright (C) 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 377 matching lines @@
 
   ContentSettingsClient& GetContentSettingsClient() override {
     return content_settings_client_;
   };
 
   SharedWorkerRepositoryClientImpl* SharedWorkerRepositoryClient()
       const override {
     return shared_worker_repository_client_.get();
   }
 
-  void SetInputEventsTransformForEmulation(const IntSize&, float);
+  void SetInputEventsTransformForEmulation(const IntSize&, float) override;
 
   static void SelectWordAroundPosition(LocalFrame*, VisiblePosition);
 
   TextCheckerClient& GetTextCheckerClient() const override;
   WebTextCheckClient* TextCheckClient() const override {
     return text_check_client_;
   }
 
-  TextFinder* GetTextFinder() const;
+  TextFinder* GetTextFinder() const override;
   // Returns the text finder object if it already exists.
   // Otherwise creates it and then returns.
   TextFinder& EnsureTextFinder() override;
 
   // Returns a hit-tested VisiblePosition for the given point
   VisiblePosition VisiblePositionForViewportPoint(const WebPoint&);
 
   void SetFrameWidget(WebFrameWidgetBase*) override;
 
   // DevTools front-end bindings.
@@ skipping 98 matching lines @@
 
 DEFINE_TYPE_CASTS(WebLocalFrameImpl,
                   WebFrame,
                   frame,
                   frame->IsWebLocalFrame(),
                   frame.IsWebLocalFrame());
 
 }  // namespace blink
 
 #endif