Revert "Fix a ton of compiler warnings."

chrome/browser/tab_contents/render_view_host_manager.h

 // Copyright (c) 2009 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 CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_
 #define CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_
 
 #include "base/basictypes.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
@@ skipping 41 matching lines @@
 
     // Creates a DOMUI object for the given URL if one applies. Ownership of the
     // returned pointer will be passed to the caller. If no DOMUI applies,
     // returns NULL.
     virtual DOMUI* CreateDOMUIForRenderManager(const GURL& url) = 0;
 
     // Returns the navigation entry of the current navigation, or NULL if there
     // is none.
     virtual NavigationEntry*
         GetLastCommittedNavigationEntryForRenderManager() = 0;
-
-   protected:
-    ~Delegate() {}
   };
 
   // Both delegate pointers must be non-NULL and are not owned by this class.
   // They must outlive this class. The RenderViewHostDelegate is what will be
   // installed into all RenderViewHosts that are created.
   //
   // You must call Init() before using this class.
   RenderViewHostManager(RenderViewHostDelegate* render_view_delegate,
                         Delegate* delegate);
   ~RenderViewHostManager();
@@ skipping 171 matching lines @@
 };
 
 // The "details" for a NOTIFY_RENDER_VIEW_HOST_CHANGED notification. The old
 // host can be NULL when the first RenderViewHost is set.
 struct RenderViewHostSwitchedDetails {
   RenderViewHost* old_host;
   RenderViewHost* new_host;
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_