Fixed thread-unsafe use of gfx::Image in app shortcut creation.

chrome/browser/ui/app_list/app_list_view_delegate.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/app_list/app_list_view_delegate.h"
 
 #include <vector>
 
 #include "apps/custom_launcher_page_contents.h"
 #include "base/callback.h"
@@ skipping 75 matching lines @@
 }  // namespace chrome
 
 namespace {
 
 const int kAutoLaunchDefaultTimeoutMilliSec = 50;
 
 #if defined(OS_WIN)
 void CreateShortcutInWebAppDir(
     const base::FilePath& app_data_dir,
     base::Callback<void(const base::FilePath&)> callback,
-    const web_app::ShortcutInfo& info) {
+    scoped_ptr<web_app::ShortcutInfo> info) {
   content::BrowserThread::PostTaskAndReplyWithResult(
-      content::BrowserThread::FILE,
-      FROM_HERE,
-      base::Bind(web_app::CreateShortcutInWebAppDir, app_data_dir, info),
+      content::BrowserThread::FILE, FROM_HERE,
+      base::Bind(web_app::CreateShortcutInWebAppDir, app_data_dir,
+                 base::Passed(&info)),
       callback);
 }
 #endif
 
 void PopulateUsers(const ProfileInfoCache& profile_info,
                    const base::FilePath& active_profile_path,
                    app_list::AppListViewDelegate::Users* users) {
   users->clear();
   const size_t count = profile_info.GetNumberOfProfiles();
   for (size_t i = 0; i < count; ++i) {
@@ skipping 734 matching lines @@
 
       // SigninManagerFactory is not a leaky singleton (unlike this class), and
       // its destructor will check that it has no remaining observers.
       scoped_observer_.RemoveAll();
       SigninManagerFactory::GetInstance()->RemoveObserver(this);
       break;
     default:
       NOTREACHED();
   }
 }