Add support for multi resolution icons

ui/gfx/image_mac.mm

 // 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.
 
 #import <AppKit/AppKit.h>
 
 #include "skia/ext/skia_utils_mac.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 namespace gfx {
 namespace internal {
 
-const SkBitmap* NSImageToSkBitmap(NSImage* image) {
-  return new SkBitmap(::gfx::NSImageToSkBitmap(image, [image size], false));
+bool NSImageToSkBitmaps(NSImage* image, std::vector<const SkBitmap*>& bitmaps) {
+  for (NSImageRep* imageRep in [image representations]) {
+    SkBitmap bitmap(gfx::NSImageRepToSkBitmap(imageRep,

[Robert Sesek, 2011/04/15 20:27:20]

Use a scoped_ptr<> here and .release() if you end up push_back()ing?

[sail, 2011/04/16 01:25:00]

Done.

+                                              [imageRep size], false));
+    if (bitmap.isNull())
+      return false;
+    bitmaps.push_back(new SkBitmap(bitmap));
+  }
+  return true;
 }
 
 }  // namespace internal
 }  // namespace gfx