Add getters for gfx::ColorSpace components

ui/gfx/color_transform_unittest.cc

Index: ui/gfx/color_transform_unittest.cc
diff --git a/ui/gfx/color_transform_unittest.cc b/ui/gfx/color_transform_unittest.cc
index c5295631449d0e4be3f7de36a46c9d90585c9a31..1cf0318c487d47c50ce7d1553f153ed3ded8829d 100644
--- a/ui/gfx/color_transform_unittest.cc
+++ b/ui/gfx/color_transform_unittest.cc
@@ -490,6 +490,11 @@ TEST_P(ColorSpaceTest, testNullTransform) {
   EXPECT_NEAR(tristim.x(), 0.4f, 0.001f);
   EXPECT_NEAR(tristim.y(), 0.5f, 0.001f);
   EXPECT_NEAR(tristim.z(), 0.6f, 0.001f);
+
+  EXPECT_EQ(color_space_.primaries(), std::tr1::get<0>(GetParam()));
+  EXPECT_EQ(color_space_.transfer_function(), std::tr1::get<1>(GetParam()));
+  EXPECT_EQ(color_space_.matrix(), std::tr1::get<2>(GetParam()));
+  EXPECT_EQ(color_space_.range(), std::tr1::get<3>(GetParam()));
 }
 
 TEST_P(ColorSpaceTest, toXYZandBack) {