Prevent SHChangeNotify on app list drag on Windows.

chrome/browser/ui/web_applications/web_app_ui.cc

 // 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.
 
 #include "chrome/browser/ui/web_applications/web_app_ui.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 273 matching lines @@
       profile_path_, shortcut_info_.extension_id, shortcut_info_.url);
 
   // Ensure web_app_path exists. web_app_path could be missing for a legacy
   // shortcut created by Gears.
   if (!base::PathExists(web_app_path) &&
       !base::CreateDirectory(web_app_path)) {
     NOTREACHED();
     return;
   }
 
-  base::FilePath icon_file = web_app_path.Append(file_name_).ReplaceExtension(
-      FILE_PATH_LITERAL(".ico"));
+  base::FilePath icon_file =
+      web_app::internals::GetIconFilePath(web_app_path, shortcut_info_.title);
   web_app::internals::CheckAndSaveIcon(icon_file, shortcut_info_.favicon);
 
   // Update existing shortcuts' description, icon and app id.
   CheckExistingShortcuts();
   if (!shortcut_files_.empty()) {
     // Generates app id from web app url and profile path.
     base::string16 app_id = ShellIntegration::GetAppModelIdForProfile(
         base::UTF8ToWide(
             web_app::GenerateApplicationNameFromURL(shortcut_info_.url)),
         profile_path_);
@@ skipping 164 matching lines @@
   // |info_list| may still be empty at this point, in which case
   // LoadImageFamilyAsync will call the OnImageLoaded callback with an empty
   // image and exit immediately.
   extensions::ImageLoader::Get(profile)->LoadImageFamilyAsync(
       extension,
       info_list,
       base::Bind(&OnImageLoaded, shortcut_info, callback));
 }
 
 }  // namespace web_app