Support for custom primaries

ui/gfx/color_space.h

Index: ui/gfx/color_space.h
diff --git a/ui/gfx/color_space.h b/ui/gfx/color_space.h
index 89bb0e898637e9f5a5f04b6ce97c617a2fc8caa7..247e641d7825d6fce38cddee4ad5e5baf91c4e4d 100644
--- a/ui/gfx/color_space.h
+++ b/ui/gfx/color_space.h
@@ -7,6 +7,7 @@
 
 #include <stdint.h>
 
+#include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "ui/gfx/gfx_export.h"
@@ -132,6 +133,9 @@ class GFX_EXPORT ColorSpace {
   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;
@@ -139,6 +143,7 @@ class GFX_EXPORT ColorSpace {
   friend class ICCProfile;
   friend class ColorSpaceToColorSpaceTransform;
   friend struct IPC::ParamTraits<gfx::ColorSpace>;
+  FRIEND_TEST_ALL_PREFIXES(SimpleColorSpace, GetColorSpace);
 };
 
 }  // namespace gfx