Add support for multi resolution icons

ui/gfx/codec/tiff_codec.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.
+
+#ifndef UI_GFX_CODEC_TIFF_CODEC_H_
+#define UI_GFX_CODEC_TIFF_CODEC_H_
+#pragma once
+
+#include <vector>
+
+#include "base/basictypes.h"
+
+class SkBitmap;
+
+namespace gfx {
+
+class TIFFCodec {
+ public:
+  static bool Decode(const unsigned char* input, size_t input_size,
+                     std::vector<SkBitmap>& bitmaps);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TIFFCodec);
+};
+
+} // namespace gfx
+
+#endif  // UI_GFX_CODEC_TIFF_CODEC_H_