Track frame openers in FrameTreeNodes instead of WebContents

content/browser/frame_host/render_frame_host_delegate.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 72 matching lines @@
                                       IPC::Message* reply_msg) {}
 
   // Another page accessed the top-level initial empty document, which means it
   // is no longer safe to display a pending URL without risking a URL spoof.
   virtual void DidAccessInitialDocument() {}
 
   // The frame changed its window.name property.
   virtual void DidChangeName(RenderFrameHost* render_frame_host,
                              const std::string& name) {}
 
-  // The frame set its opener to null, disowning it for the lifetime of the
-  // window. Only called for the top-level frame.
-  virtual void DidDisownOpener(RenderFrameHost* render_frame_host) {}
-
   // The onload handler in the frame has completed. Only called for the top-
   // level frame.
   virtual void DocumentOnLoadCompleted(RenderFrameHost* render_frame_host) {}
 
   // The page's title was changed and should be updated. Only called for the
   // top-level frame.
   virtual void UpdateTitle(RenderFrameHost* render_frame_host,
                            int32 page_id,
                            const base::string16& title,
                            base::i18n::TextDirection title_direction) {}
@@ skipping 68 matching lines @@
   virtual gfx::NativeViewAccessible GetParentNativeViewAccessible();
 #endif
 
  protected:
   virtual ~RenderFrameHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_