Enable devtools via context menu in platform apps and popup extensions.

chrome/browser/extensions/extension_host.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_HOST_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 107 matching lines @@
   virtual void RenderViewReady() OVERRIDE;
   virtual void RenderViewGone(base::TerminationStatus status) OVERRIDE;
   virtual void DocumentAvailableInMainFrame() OVERRIDE;
   virtual void DocumentLoadedInFrame(int64 frame_id) OVERRIDE;
   virtual void DidStopLoading() OVERRIDE;
 
   // content::WebContentsDelegate
   virtual content::WebContents* OpenURLFromTab(
       content::WebContents* source,
       const content::OpenURLParams& params) OVERRIDE;
-  virtual bool HandleContextMenu(const ContextMenuParams& params) OVERRIDE;
   virtual bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
                                       bool* is_keyboard_shortcut) OVERRIDE;
   virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event)
       OVERRIDE;
   virtual void UpdatePreferredSize(content::WebContents* source,
                                    const gfx::Size& pref_size) OVERRIDE;
   virtual content::JavaScriptDialogCreator* GetJavaScriptDialogCreator()
       OVERRIDE;
   virtual void RunFileChooser(
       content::WebContents* tab,
@@ skipping 91 matching lines @@
   // The relevant WebContents associated with this ExtensionHost, if any.
   content::WebContents* associated_web_contents_;
 
   // Used to measure how long it's been since the host was created.
   PerfTimer since_created_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionHost);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_