Remove unused RenderViewHostManager::SwapInRenderViewHost() and TabContents::SwapInRenderViewHost()

content/browser/tab_contents/tab_contents.h

 // Copyright (c) 2011 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_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 233 matching lines @@
   // fired. The value of this changes over time. For example, if true and the
   // before unload listener is executed and allows the user to exit, then this
   // returns false.
   bool NeedToFireBeforeUnload();
 
   // Expose the render manager for testing.
   RenderViewHostManager* render_manager_for_testing() {
     return &render_manager_;
   }
 
-  // In the underlying RenderViewHostManager, swaps in the provided
-  // RenderViewHost to replace the current RenderViewHost.  The current RVH
-  // will be shutdown and ultimately deleted.
-  void SwapInRenderViewHost(RenderViewHost* rvh);
-
   // Commands ------------------------------------------------------------------
 
   // Implementation of PageNavigator.
 
   // Deprecated. Please use the one-argument variant instead.
   // TODO(adriansc): Remove this method once refactoring changed all call sites.
   virtual TabContents* OpenURL(const GURL& url,
                                const GURL& referrer,
                                WindowOpenDisposition disposition,
                                PageTransition::Type transition) OVERRIDE;
@@ skipping 586 matching lines @@
   ObserverList<TabContentsObserver> observers_;
 
   // Content restrictions, used to disable print/copy etc based on content's
   // (full-page plugins for now only) permissions.
   int content_restrictions_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_