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diff --git a/app/gfx/skbitmap_operations.h b/app/gfx/skbitmap_operations.h
deleted file mode 100644
index d6bb5d3..0000000
--- a/app/gfx/skbitmap_operations.h
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2009 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 APP_GFX_SKBITMAP_OPERATIONS_H_
-#define APP_GFX_SKBITMAP_OPERATIONS_H_
-
-#include "app/gfx/color_utils.h"
-#include "testing/gtest/include/gtest/gtest_prod.h"
-
-class SkBitmap;
-
-class SkBitmapOperations {
- public:
-  // Create a bitmap that is a blend of two others. The alpha argument
-  // specifies the opacity of the second bitmap. The provided bitmaps must
-  // use have the kARGB_8888_Config config and be of equal dimensions.
-  static SkBitmap CreateBlendedBitmap(const SkBitmap& first,
-                                      const SkBitmap& second,
-                                      double alpha);
-
-  // Create a bitmap that is the original bitmap masked out by the mask defined
-  // in the alpha bitmap. The images must use the kARGB_8888_Config config and
-  // be of equal dimensions.
-  static SkBitmap CreateMaskedBitmap(const SkBitmap& first,
-                                     const SkBitmap& alpha);
-
-  // We create a button background image by compositing the color and image
-  // together, then applying the mask. This is a highly specialized composite
-  // operation that is the equivalent of drawing a background in |color|,
-  // tiling |image| over the top, and then masking the result out with |mask|.
-  // The images must use kARGB_8888_Config config.
-  static SkBitmap CreateButtonBackground(SkColor color,
-                                         const SkBitmap& image,
-                                         const SkBitmap& mask);
-
-  // Shift a bitmap's HSL values. The shift values are in the range of 0-1,
-  // with the option to specify -1 for 'no change'. The shift values are
-  // defined as:
-  // hsl_shift[0] (hue): The absolute hue value for the image - 0 and 1 map
-  //    to 0 and 360 on the hue color wheel (red).
-  // hsl_shift[1] (saturation): A saturation shift for the image, with the
-  //    following key values:
-  //    0 = remove all color.
-  //    0.5 = leave unchanged.
-  //    1 = fully saturate the image.
-  // hsl_shift[2] (lightness): A lightness shift for the image, with the
-  //    following key values:
-  //    0 = remove all lightness (make all pixels black).
-  //    0.5 = leave unchanged.
-  //    1 = full lightness (make all pixels white).
-  static SkBitmap CreateHSLShiftedBitmap(const SkBitmap& bitmap,
-                                         color_utils::HSL hsl_shift);
-
-  // Create a bitmap that is cropped from another bitmap. This is special
-  // because it tiles the original bitmap, so your coordinates can extend
-  // outside the bounds of the original image.
-  static SkBitmap CreateTiledBitmap(const SkBitmap& bitmap,
-                                    int src_x, int src_y,
-                                    int dst_w, int dst_h);
-
-  // Iteratively downsamples by 2 until the bitmap is no smaller than the
-  // input size. The normal use of this is to downsample the bitmap "close" to
-  // the final size, and then use traditional resampling on the result.
-  // Because the bitmap will be closer to the final size, it will be faster,
-  // and linear interpolation will generally work well as a second step.
-  static SkBitmap DownsampleByTwoUntilSize(const SkBitmap& bitmap,
-                                           int min_w, int min_h);
-
- private:
-  SkBitmapOperations();  // Class for scoping only.
-
-  // Makes a bitmap half has large in each direction by averaging groups of
-  // 4 pixels. This is one step in generating a mipmap.
-  static SkBitmap DownsampleByTwo(const SkBitmap& bitmap);
-
-  FRIEND_TEST(SkBitmapOperationsTest, DownsampleByTwo);
-  FRIEND_TEST(SkBitmapOperationsTest, DownsampleByTwoSmall);
-};
-
-#endif  // APP_GFX_SKBITMAP_OPERATIONS_H_
-