Add native permissions dialog for apps_devtools app.

chrome/browser/extensions/extension_install_prompt.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_INSTALL_PROMPT_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 293 matching lines @@
  protected:
   friend class extensions::ExtensionWebstorePrivateApiTest;
   friend class extensions::MockGetAuthTokenFunction;
   friend class WebstoreStartupInstallUnpackFailureTest;
 
   // Whether or not we should record the oauth2 grant upon successful install.
   bool record_oauth2_grant_;
 
  private:
   friend class GalleryInstallApiTestObserver;
+  friend class ExtensionPermissionsPrompt;

[asargent_no_longer_on_chrome, 2013/03/20 21:46:30]

I don't like the idea of using friendship here.

We should either:

A) Change this class to support the behavior we need via constructor parameters
or extra methods.

or

B) Change private to protected so your subclass can call the methods needed.

or 

C) Use a "delegate" pattern where this class can take an object that implements
some interface, and then calls methods on that object to customize behavior. 

[Gaurav, 2013/03/27 19:06:44]

Added an extra method, and removed the new class

 
   // Sets the icon that will be used in any UI. If |icon| is NULL, or contains
   // an empty bitmap, then a default icon will be used instead.
   void SetIcon(const SkBitmap* icon);
 
   // ImageLoader callback.
   void OnImageLoaded(const gfx::Image& image);
 
   // Starts the process of showing a confirmation UI, which is split into two.
   // 1) Set off a 'load icon' task.
@@ skipping 39 matching lines @@
   // A pre-filled prompt.
   Prompt prompt_;
 
   scoped_ptr<OAuth2MintTokenFlow> token_flow_;
 
   // Used to show the confirm dialog.
   ShowDialogCallback show_dialog_callback_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_