Remove old session history logic.

content/browser/renderer_host/render_view_host_delegate.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_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 14 matching lines @@
 
 namespace gfx {
 class Rect;
 class Size;
 }
 
 namespace content {
 
 class BrowserContext;
 class FrameTree;
-class PageState;
 class RenderViewHost;
 class RenderViewHostImpl;
 class RenderViewHostDelegateView;
 class SessionStorageNamespace;
 class SiteInstance;
 class WebContents;
 struct RendererPreferences;
 
 //
 // RenderViewHostDelegate
@@ skipping 32 matching lines @@
   // The process containing the RenderView exited somehow (either cleanly,
   // crash, or user kill).
   virtual void RenderViewTerminated(RenderViewHost* render_view_host,
                                     base::TerminationStatus status,
                                     int error_code) {}
 
   // The RenderView is going to be deleted. This is called when each
   // RenderView is going to be destroyed
   virtual void RenderViewDeleted(RenderViewHost* render_view_host) {}
 
-  // The state for the page changed and should be updated.
-  virtual void UpdateState(RenderViewHost* render_view_host,
-                           const PageState& state) {}
-
   // The destination URL has changed should be updated.
   virtual void UpdateTargetURL(RenderViewHost* render_view_host,
                                const GURL& url) {}
 
   // The page is trying to close the RenderView's representation in the client.
   virtual void Close(RenderViewHost* render_view_host) {}
 
   // The page is trying to move the RenderView's representation in the client.
   virtual void RequestMove(const gfx::Rect& new_bounds) {}
 
@@ skipping 96 matching lines @@
   // the focused RenderWidget.
   virtual void ClearFocusedElement() {}
 
  protected:
   virtual ~RenderViewHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_