chromeos: Fix pixelated icons in app list and launcher (part 1)

ui/gfx/image/image_skia_operations.h

 // 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.
 
-#ifndef UI_GFX_IMAGESKIA_OPERATIONS_H_
-#define UI_GFX_IMAGESKIA_OPERATIONS_H_
+#ifndef UI_GFX_IMAGE_IMAGE_SKIA_OPERATIONS_H_
+#define UI_GFX_IMAGE_IMAGE_SKIA_OPERATIONS_H_
 #pragma once
 
 #include "base/gtest_prod_util.h"
 #include "ui/base/ui_export.h"
+#include "ui/gfx/shadow_value.h"

[oshima, 2012/07/11 18:08:41]

can you use forward decl?

[xiyuan, 2012/07/11 21:40:40]

This header is included for gfx::ShadowValues, which is
typedef std::vector<ShadowValue> ShadowValues

Is there a way to forward declare a typedef without repeating it?

 
 namespace gfx {
 class ImageSkia;
+class Size;
 
 class UI_EXPORT ImageSkiaOperations {
  public:
   // Create an image that is a blend of two others. The alpha argument
   // specifies the opacity of the second imag. The provided image must
   // use the kARGB_8888_Config config and be of equal dimensions.
   static ImageSkia CreateBlendedImage(const ImageSkia& first,
                                       const ImageSkia& second,
                                       double alpha);
 
   // Create an image that is the original image masked out by the mask defined
   // in the alpha image. The images must use the kARGB_8888_Config config and
   // be of equal dimensions.
   static ImageSkia CreateMaskedImage(const ImageSkia& first,
                                      const ImageSkia& alpha);
 
   // Create an image that is cropped from another image. This is special
   // because it tiles the original image, so your coordinates can extend
   // outside the bounds of the original image.
   static ImageSkia CreateTiledImage(const ImageSkia& image,
                                     int src_x, int src_y,
                                     int dst_w, int dst_h);
 
+  // Creates an image by resizing |source| to given |target_dip_size|.
+  static ImageSkia CreateResizedImage(const ImageSkia& source,
+                                      const Size& target_dip_size);
+
+  // Creates an image with drop shadow defined in |shadows| for |source|.
+  static ImageSkia CreateDropShadowImage(const ImageSkia& source,
+                                         const ShadowValues& shadows);
+
  private:
   ImageSkiaOperations();  // Class for scoping only.
 };
 
 }
 
-#endif  // UI_GFX_IMAGESKIA_OPERATIONS_H_
+#endif  // UI_GFX_IMAGE_IMAGE_SKIA_OPERATIONS_H_