color: Towards ColorTransform optimizations and code generation

ui/gfx/color_space.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_COLOR_SPACE_H_
 #define UI_GFX_COLOR_SPACE_H_
 
 #include <stdint.h>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "third_party/skia/include/core/SkColorSpace.h"
 #include "ui/gfx/gfx_export.h"
 
 namespace IPC {
 template <class P>
 struct ParamTraits;
 }  // namespace IPC
 
 namespace gfx {
 
 class ICCProfile;
-class ColorSpaceToColorSpaceTransform;
 
 // Used to represet a color space for the purpose of color conversion.
 // This is designed to be safe and compact enough to send over IPC
 // between any processes.
 class GFX_EXPORT ColorSpace {
  public:
   enum class PrimaryID : uint16_t {
     // The first 0-255 values should match the H264 specification (see Table E-3
     // Colour Primaries in https://www.itu.int/rec/T-REC-H.264/en).
     RESERVED0 = 0,
@@ skipping 165 matching lines @@
   // through G entries of the SkColorSpaceTransferFn structure in alphabetical
   // order.
   float custom_transfer_params_[7] = {0, 0, 0, 0, 0, 0, 0};
 
   // This is used to look up the ICCProfile from which this ColorSpace was
   // created, if possible.
   uint64_t icc_profile_id_ = 0;
   sk_sp<SkColorSpace> icc_profile_sk_color_space_;
 
   friend class ICCProfile;
-  friend class ColorSpaceToColorSpaceTransform;
+  friend class ColorTransform;
+  friend class ColorTransformInternal;
   friend class ColorSpaceWin;
   friend struct IPC::ParamTraits<gfx::ColorSpace>;
   FRIEND_TEST_ALL_PREFIXES(SimpleColorSpace, GetColorSpace);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_COLOR_SPACE_H_