Add a confirmation prompt to app uninstallation on the ntp.

chrome/browser/extensions/extension_install_ui.h

 // Copyright (c) 2010 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_UI_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_UI_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 98 matching lines @@
   // Returns the delegate to control the browser's info bar. This is
   // within its own function due to its platform-specific nature.
   static InfoBarDelegate* GetNewThemeInstalledInfoBarDelegate(
       TabContents* tab_contents, Extension* new_theme,
       const std::string& previous_theme_id, bool previous_use_system_theme);
 
   // Implements the showing of the install/uninstall dialog prompt.
   // NOTE: The implementations of this function is platform-specific.
   static void ShowExtensionInstallUIPromptImpl(
       Profile* profile, Delegate* delegate, Extension* extension,
-      SkBitmap* icon, const string16& warning, PromptType type);
+      SkBitmap* icon, PromptType type);
 
   // Implements the showing of the new install dialog. The implementations of
   // this function are platform-specific.
   static void ShowExtensionInstallUIPrompt2Impl(
       Profile* profile, Delegate* delegate, Extension* extension,
       SkBitmap* icon, const std::vector<string16>& permissions);
 
   Profile* profile_;
   MessageLoop* ui_loop_;
 
   // Used to undo theme installation.
   std::string previous_theme_id_;
   bool previous_use_system_theme_;
 
   SkBitmap icon_;  // The extensions installation icon.
   Extension* extension_;  // The extension we are showing the UI for.
   Delegate* delegate_;    // The delegate we will call Proceed/Abort on after
                           // confirmation UI.
   PromptType prompt_type_;  // The type of prompt we are going to show.
 
   // Keeps track of extension images being loaded on the File thread for the
   // purpose of showing the install UI.
   ImageLoadingTracker tracker_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_UI_H_