Revert of Support for custom primaries

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 "ui/gfx/gfx_export.h"
 
 namespace IPC {
 template <class P>
 struct ParamTraits;
 }  // namespace IPC
 
 namespace gfx {
@@ skipping 105 matching lines @@
   bool operator==(const ColorSpace& other) const;
   bool operator!=(const ColorSpace& other) const;
   bool operator<(const ColorSpace& other) const;
 
  private:
   PrimaryID primaries_;
   TransferID transfer_;
   MatrixID matrix_;
   RangeID range_;
 
-  // Only used if primaries_ == PrimaryID::CUSTOM
-  float custom_primary_matrix_[12];
-
   // This is used to look up the ICCProfile from which this ColorSpace was
   // created, if possible.
   uint64_t icc_profile_id_ = 0;
 
   friend class ICCProfile;
   friend class ColorSpaceToColorSpaceTransform;
   friend struct IPC::ParamTraits<gfx::ColorSpace>;
-  FRIEND_TEST_ALL_PREFIXES(SimpleColorSpace, GetColorSpace);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_COLOR_SPACE_H_