Add support for adding 256x256 pngs to Windows .ico files.

chrome/browser/jumplist_win.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/jumplist_win.h"
 
 #include <windows.h>
 #include <shobjidl.h>
 #include <propkey.h>
 #include <propvarutil.h>
@@ skipping 245 matching lines @@
                     FilePath* icon_path) {
   // Retrieve the path to a temporary file.
   // We don't have to care about the extension of this temporary file because
   // JumpList does not care about it.
   FilePath path;
   if (!file_util::CreateTemporaryFileInDir(icon_dir, &path))
     return false;
 
   // Create an icon file from the favicon attached to the given |page|, and
   // save it as the temporary file.
-  if (!IconUtil::CreateIconFileFromSkBitmap(bitmap, path))
+  if (!IconUtil::CreateIconFileFromSkBitmap(bitmap, SkBitmap(), path))
     return false;
 
   // Add this icon file to the list and return its absolute path.
   // The IShellLink::SetIcon() function needs the absolute path to an icon.
   *icon_path = path;
   return true;
 }
 
 // Updates a specified category of an application JumpList.
 // This function cannot update registered categories (such as "Tasks") because
@@ skipping 501 matching lines @@
 }
 
 void JumpList::CreateIconFiles(const ShellLinkItemList& item_list) {
   for (ShellLinkItemList::const_iterator item = item_list.begin();
       item != item_list.end(); ++item) {
     FilePath icon_path;
     if (CreateIconFile((*item)->data(), icon_dir_, &icon_path))
       (*item)->SetIcon(icon_path.value(), 0, true);
   }
 }