cc: Move output color space from DrawingFrame to RenderPass

cc/ipc/render_pass_struct_traits.h

Index: cc/ipc/render_pass_struct_traits.h
diff --git a/cc/ipc/render_pass_struct_traits.h b/cc/ipc/render_pass_struct_traits.h
index 124415233ca29242591d90d5a37c90eab52ed552..ee69709baec8443799ff6cd1867a0de2e64c33bf 100644
--- a/cc/ipc/render_pass_struct_traits.h
+++ b/cc/ipc/render_pass_struct_traits.h
@@ -9,6 +9,7 @@
 #include "cc/ipc/quads_struct_traits.h"
 #include "cc/ipc/render_pass.mojom-shared.h"
 #include "cc/quads/render_pass.h"
+#include "ui/gfx/ipc/color/gfx_param_traits.h"
 #include "ui/gfx/mojo/transform_struct_traits.h"
 
 namespace mojo {
@@ -46,6 +47,11 @@ struct StructTraits<cc::mojom::RenderPassDataView,
     return input->background_filters;
   }
 
+  static const gfx::ColorSpace& color_space(
+      const std::unique_ptr<cc::RenderPass>& input) {
+    return input->color_space;
+  }
+
   static bool has_transparent_background(
       const std::unique_ptr<cc::RenderPass>& input) {
     return input->has_transparent_background;