Add support for multi resolution icons

ui/gfx/image_unittest.h

-// 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.
-
-// Because the unit tests for gfx::Image are spread across multiple
-// implementation files, this header contains the reusable components.
-
-#ifndef UI_GFX_IMAGE_UNITTEST_H_
-#define UI_GFX_IMAGE_UNITTEST_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-
-#if defined(OS_LINUX)
-#include "ui/gfx/gtk_util.h"
-#elif defined(OS_MACOSX)
-#include "base/mac/mac_util.h"
-#include "skia/ext/skia_utils_mac.h"
-#endif
-
-namespace gfx {
-namespace test {
-
-#if defined(OS_MACOSX)
-typedef NSImage* PlatformImage;
-#elif defined(OS_LINUX) && !defined(TOOLKIT_VIEWS)
-typedef GdkPixbuf* PlatformImage;
-#else
-typedef const SkBitmap* PlatformImage;
-#endif
-
-SkBitmap* CreateBitmap() {
-  SkBitmap* bitmap = new SkBitmap();
-  bitmap->setConfig(SkBitmap::kARGB_8888_Config, 25, 25);
-  bitmap->allocPixels();
-  bitmap->eraseRGB(255, 0, 0);
-  return bitmap;
-}
-
-PlatformImage CreatePlatformImage() {
-  scoped_ptr<SkBitmap> bitmap(CreateBitmap());
-#if defined(OS_MACOSX)
-  NSImage* image = gfx::SkBitmapToNSImage(*(bitmap.get()));
-  base::mac::NSObjectRetain(image);
-  return image;
-#elif defined(OS_LINUX) && !defined(TOOLKIT_VIEWS)
-  return gfx::GdkPixbufFromSkBitmap(bitmap.get());
-#else
-  return bitmap.release();
-#endif
-}
-
-gfx::Image::RepresentationType GetPlatformRepresentationType() {
-#if defined(OS_MACOSX)
-  return gfx::Image::kNSImageRep;
-#elif defined(OS_LINUX) && !defined(TOOLKIT_VIEWS)
-  return gfx::Image::kGdkPixbufRep;
-#else
-  return gfx::Image::kSkBitmapRep;
-#endif
-}
-
-}  // namespace test
-}  // namespace gfx
-
-#endif  // UI_GFX_IMAGE_UNITTEST_H_