Support touch icon in FaviconHelper

chrome/browser/ui/web_applications/web_app_ui.cc

 // Copyright (c) 2011 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/file_util.h"
 #include "base/path_service.h"
 #include "base/task.h"
 #include "base/win/windows_version.h"
@@ skipping 119 matching lines @@
   if (unprocessed_icons_.empty()) {
     // No app icon. Just use the favicon from TabContents.
     UpdateShortcuts();
     return;
   }
 
   tab_contents_->tab_contents()->favicon_helper().DownloadImage(
       unprocessed_icons_.back().url,
       std::max(unprocessed_icons_.back().width,
                unprocessed_icons_.back().height),
+      history::FAVICON,
       NewCallback(this, &UpdateShortcutWorker::OnIconDownloaded));
   unprocessed_icons_.pop_back();
 }
 
 void UpdateShortcutWorker::OnIconDownloaded(int download_id,
                                             bool errored,
                                             const SkBitmap& image) {
   if (tab_contents_ == NULL) {
     DeleteMe();  // We are done if underlying TabContents is gone.
     return;
@@ skipping 158 matching lines @@
 
 void UpdateShortcutForTabContents(TabContentsWrapper* tab_contents) {
 #if defined(OS_WIN)
   // UpdateShortcutWorker will delete itself when it's done.
   UpdateShortcutWorker* worker = new UpdateShortcutWorker(tab_contents);
   worker->Run();
 #endif  // defined(OS_WIN)
 }
 
 }  // namespace web_app