Remove RenderView::GetPageId.

content/public/renderer/render_view.h

 // Copyright (c) 2012 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_PUBLIC_RENDERER_RENDER_VIEW_H_
 #define CONTENT_PUBLIC_RENDERER_RENDER_VIEW_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 38 matching lines @@
   // Visit all RenderViews with a live WebView (i.e., RenderViews that have
   // been closed but not yet destroyed are excluded).
   static void ForEach(RenderViewVisitor* visitor);
 
   // Returns the main RenderFrame.
   virtual RenderFrame* GetMainRenderFrame() = 0;
 
   // Get the routing ID of the view.
   virtual int GetRoutingID() const = 0;
 
-  // Page IDs allow the browser to identify pages in each renderer process for
-  // keeping back/forward history in sync.
-  // Note that this is NOT updated for every main frame navigation, only for
-  // "regular" navigations that go into session history. In particular, client
-  // redirects, like the page cycler uses (document.location.href="foo") do not
-  // count as regular navigations and do not increment the page id.
-  virtual int GetPageId() const = 0;
-
   // Returns the size of the view.
   virtual gfx::Size GetSize() const = 0;
 
   // Gets WebKit related preferences associated with this view.
   virtual WebPreferences& GetWebkitPreferences() = 0;
 
   // Overrides the WebKit related preferences associated with this view. Note
   // that the browser process may update the preferences at any time.
   virtual void SetWebkitPreferences(const WebPreferences& preferences) = 0;
 
@@ skipping 55 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class RenderViewImpl;
   RenderView() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_RENDER_VIEW_H_