Pull shell window stuff out of ExtensionHost and put in ShellWindow

chrome/browser/extensions/extension_function_dispatcher.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 CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 37 matching lines @@
 // we can gracefully handle cases like WebContents, where the RVH, extension,
 // and URL can all change over the lifetime of the tab. Instead, these items
 // are all passed into each request.
 class ExtensionFunctionDispatcher
     : public base::SupportsWeakPtr<ExtensionFunctionDispatcher> {
  public:
   class Delegate {
    public:
     // Returns the ExtensionWindowController associated with this delegate,
     // or NULL if no window is associated with the delegate.
-    virtual ExtensionWindowController* GetExtensionWindowController() const = 0;
+    virtual ExtensionWindowController* GetExtensionWindowController() const;
 
     // Asks the delegate for any relevant WebContents associated with this
     // context. For example, the WebbContents in which an infobar or
     // chrome-extension://<id> URL are being shown. Callers must check for a
     // NULL return value (as in the case of a background page).
-    virtual content::WebContents* GetAssociatedWebContents() const = 0;
+    virtual content::WebContents* GetAssociatedWebContents() const;
 
    protected:
     virtual ~Delegate() {}
   };
 
   // Gets a list of all known extension function names.
   static void GetAllFunctionNames(std::vector<std::string>* names);
 
   // Override a previously registered function. Returns true if successful,
   // false if no such function was registered.
@@ skipping 53 matching lines @@
   static void SendAccessDenied(IPC::Message::Sender* ipc_sender,
                                int routing_id,
                                int request_id);
 
   Profile* profile_;
 
   Delegate* delegate_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_