Adds a gfx_export.h to ui/gfx and converts all code in ui/gfx to

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_IMAGE_SKIA_OPERATIONS_H_
 #define UI_GFX_IMAGE_SKIA_OPERATIONS_H_
 
 #include "base/gtest_prod_util.h"
 #include "skia/ext/image_operations.h"
-#include "ui/base/ui_export.h"
 #include "ui/gfx/color_utils.h"
+#include "ui/gfx/gfx_export.h"
 #include "ui/gfx/shadow_value.h"
 #include "ui/gfx/skbitmap_operations.h"
 
 namespace gfx {
 class ImageSkia;
 class Rect;
 class Size;
 
 class UI_EXPORT ImageSkiaOperations {
  public:
@@ skipping 72 matching lines @@
       const ImageSkia& source,
       SkBitmapOperations::RotationAmount rotation);
 
  private:
   ImageSkiaOperations();  // Class for scoping only.
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_IMAGE_IMAGE_SKIA_OPERATIONS_H_