Remove extension automation support that was used only by CEEE.

chrome/browser/extensions/extension_function_dispatcher.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 CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 117 matching lines @@
 
   RenderViewHost* render_view_host_;
 
   Delegate* delegate_;
 
   GURL url_;
 
   std::string extension_id_;
 
   scoped_refptr<Peer> peer_;
-
-  // AutomationExtensionFunction requires access to the RenderViewHost
-  // associated with us.  We make it a friend rather than exposing the
-  // RenderViewHost as a public method as we wouldn't want everyone to
-  // start assuming a 1:1 relationship between us and RenderViewHost,
-  // whereas AutomationExtensionFunction is by necessity "tight" with us.
-  friend class AutomationExtensionFunction;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_