Move [Provisional]DataSource accessors/methods from WebFrame to WebLocalFrame.

third_party/WebKit/public/web/WebFrame.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 39 matching lines @@
 
 namespace blink {
 
 class Frame;
 class OpenedFrameTracker;
 class Page;
 class Visitor;
 class WebAssociatedURLLoader;
 struct WebAssociatedURLLoaderOptions;
 class WebDOMEvent;
-class WebDataSource;
 class WebDocument;
 class WebElement;
 class WebLocalFrame;
 class WebPerformance;
 class WebRemoteFrame;
 class WebSecurityOrigin;
 class WebString;
 class WebURL;
 class WebURLRequest;
 class WebView;
@@ skipping 229 matching lines @@
   // of a redirect.
   virtual void ReloadWithOverrideURL(const WebURL& override_url,
                                      WebFrameLoadType) = 0;
 
   // Load the given URL.
   virtual void LoadRequest(const WebURLRequest&) = 0;
 
   // Stops any pending loads on the frame and its children.
   virtual void StopLoading() = 0;
 
-  // Returns the data source that is currently loading.  May be null.
-  virtual WebDataSource* ProvisionalDataSource() const = 0;
-
-  // Returns the data source that is currently loaded.
-  virtual WebDataSource* DataSource() const = 0;
-
   // View-source rendering mode.  Set this before loading an URL to cause
   // it to be rendered in view-source mode.
   virtual void EnableViewSourceMode(bool) = 0;
   virtual bool IsViewSourceModeEnabled() const = 0;
 
   // Sets the referrer for the given request to be the specified URL or
   // if that is null, then it sets the referrer to the referrer that the
   // frame would use for subresources.  NOTE: This method also filters
   // out invalid referrers (e.g., it is invalid to send a HTTPS URL as
   // the referrer for a HTTP request).
@@ skipping 121 matching lines @@
   WebFrame* first_child_;
   WebFrame* last_child_;
 
   WebFrame* opener_;
   std::unique_ptr<OpenedFrameTracker> opened_frame_tracker_;
 };
 
 }  // namespace blink
 
 #endif