Towards deleting YUV to RGB computation redundancy

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 fbbb78690df39aa52a701190369f4ae979912155..1f12b0a810e7c847ababf144d8e3d47bd83a8aad 100644
--- a/ui/gfx/color_space.h
+++ b/ui/gfx/color_space.h
@@ -178,6 +178,10 @@ class GFX_EXPORT ColorSpace {
   bool GetTransferFunction(SkColorSpaceTransferFn* fn) const;
   bool GetInverseTransferFunction(SkColorSpaceTransferFn* fn) const;
 
+  // For most formats, this is the RGB to YUV matrix.
+  void GetTransferMatrix(SkMatrix44* matrix) const;
+  void GetRangeAdjustMatrix(SkMatrix44* matrix) const;
+
  private:
   PrimaryID primaries_ = PrimaryID::UNSPECIFIED;
   TransferID transfer_ = TransferID::UNSPECIFIED;