Fix bug where icon is not displayed in extension install bubbles

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 50 matching lines @@
   virtual void ConfirmInstall(Delegate* delegate, const Extension* extension);
 
   // This is called by the extensions management page to verify whether the
   // uninstallation should proceed. This is declared virtual for testing.
   //
   // We *MUST* eventually call either Proceed() or Abort()
   // on |delegate|.
   virtual void ConfirmUninstall(Delegate* delegate, const Extension* extension);
 
   // Installation was successful. This is declared virtual for testing.
-  virtual void OnInstallSuccess(const Extension* extension);
+  virtual void OnInstallSuccess(const Extension* extension, SkBitmap* icon);
 
   // Installation failed. This is declared virtual for testing.
   virtual void OnInstallFailure(const std::string& error);
 
   // ImageLoadingTracker::Observer overrides.
   virtual void OnImageLoaded(
       SkBitmap* image, ExtensionResource resource, int index);
 
   // Show an infobar for a newly-installed theme.  previous_theme_id
   // should be empty if the previous theme was the system/default
   // theme.
   //
   // TODO(akalin): Find a better home for this (and
   // GetNewThemeInstalledInfoBarDelegate()).
   static void ShowThemeInfoBar(
       const std::string& previous_theme_id, bool previous_use_system_theme,
       const Extension* new_theme, Profile* profile);
 
  private:
+  // 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(SkBitmap* icon);
+
   // Starts the process of showing a confirmation UI, which is split into two.
   // 1) Set off a 'load icon' task.
   // 2) Handle the load icon response and show the UI (OnImageLoaded).
   void ShowConfirmation(PromptType prompt_type);
 
 #if defined(OS_MACOSX)
   // When an extension is installed on Mac with neither browser action nor
   // page action icons, show an infobar instead of a popup bubble.
   void ShowGenericExtensionInstalledInfoBar(const Extension* new_extension);
 #endif
@@ skipping 28 matching lines @@
   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_