Use SkICC in gfx::ICCProfile and gfx::ColorSpace

ui/gfx/color_transform_unittest.cc

 // Copyright (c) 2016 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.
 
 #include "base/logging.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/color_space.h"
 #include "ui/gfx/color_transform.h"
 #include "ui/gfx/icc_profile.h"
 #include "ui/gfx/test/icc_profiles.h"
@@ skipping 99 matching lines @@
   tmp = ColorTransform::TriStim(128.0f / 255.0f, 240.0f / 255.0f, 0.5f);
   t->transform(&tmp, 1);
   EXPECT_GT(tmp.z(), tmp.x());
   EXPECT_GT(tmp.z(), tmp.y());
 }
 
 TEST(SimpleColorSpace, GetColorSpace) {
   ICCProfile srgb_icc = ICCProfileForTestingSRGB();
   ColorSpace sRGB = srgb_icc.GetColorSpace();
   ColorSpace sRGB2 = sRGB;
+  const float kEpsilon = 0.0012f;
 
   // Prevent sRGB2 from using a cached ICC profile.
   sRGB2.icc_profile_id_ = 0;
 
   std::unique_ptr<ColorTransform> t(ColorTransform::NewColorTransform(
       sRGB, sRGB2, ColorTransform::Intent::INTENT_ABSOLUTE));
 
   ColorTransform::TriStim tmp(1.0f, 1.0f, 1.0f);
   t->transform(&tmp, 1);
-  EXPECT_NEAR(tmp.x(), 1.0f, 0.001f);
-  EXPECT_NEAR(tmp.y(), 1.0f, 0.001f);
-  EXPECT_NEAR(tmp.z(), 1.0f, 0.001f);
+  EXPECT_NEAR(tmp.x(), 1.0f, kEpsilon);
+  EXPECT_NEAR(tmp.y(), 1.0f, kEpsilon);
+  EXPECT_NEAR(tmp.z(), 1.0f, kEpsilon);
 
   tmp = ColorTransform::TriStim(1.0f, 0.0f, 0.0f);
   t->transform(&tmp, 1);
-  EXPECT_NEAR(tmp.x(), 1.0f, 0.001f);
-  EXPECT_NEAR(tmp.y(), 0.0f, 0.001f);
-  EXPECT_NEAR(tmp.z(), 0.0f, 0.001f);
+  EXPECT_NEAR(tmp.x(), 1.0f, kEpsilon);
+  EXPECT_NEAR(tmp.y(), 0.0f, kEpsilon);
+  EXPECT_NEAR(tmp.z(), 0.0f, kEpsilon);
 
   tmp = ColorTransform::TriStim(0.0f, 1.0f, 0.0f);
   t->transform(&tmp, 1);
-  EXPECT_NEAR(tmp.x(), 0.0f, 0.001f);
-  EXPECT_NEAR(tmp.y(), 1.0f, 0.001f);
-  EXPECT_NEAR(tmp.z(), 0.0f, 0.001f);
+  EXPECT_NEAR(tmp.x(), 0.0f, kEpsilon);
+  EXPECT_NEAR(tmp.y(), 1.0f, kEpsilon);
+  EXPECT_NEAR(tmp.z(), 0.0f, kEpsilon);
 
   tmp = ColorTransform::TriStim(0.0f, 0.0f, 1.0f);
   t->transform(&tmp, 1);
-  EXPECT_NEAR(tmp.x(), 0.0f, 0.001f);
-  EXPECT_NEAR(tmp.y(), 0.0f, 0.001f);
-  EXPECT_NEAR(tmp.z(), 1.0f, 0.001f);
+  EXPECT_NEAR(tmp.x(), 0.0f, kEpsilon);
+  EXPECT_NEAR(tmp.y(), 0.0f, kEpsilon);
+  EXPECT_NEAR(tmp.z(), 1.0f, kEpsilon);
 }
 
 TEST(SimpleColorSpace, UnknownToSRGB) {
   ColorSpace unknown;
   ColorSpace sRGB = ColorSpace::CreateSRGB();
   std::unique_ptr<ColorTransform> t(ColorTransform::NewColorTransform(
       unknown, sRGB, ColorTransform::Intent::INTENT_PERCEPTUAL));
 
   ColorTransform::TriStim tmp(16.0f / 255.0f, 0.5f, 0.5f);
   t->transform(&tmp, 1);
@@ skipping 116 matching lines @@
 
 INSTANTIATE_TEST_CASE_P(
     C,
     ColorSpaceTest,
     testing::Combine(testing::ValuesIn(all_primaries),
                      testing::Values(ColorSpace::TransferID::BT709),
                      testing::ValuesIn(all_matrices),
                      testing::ValuesIn(all_ranges),
                      testing::ValuesIn(intents)));
 }  // namespace