Use real colorspace for DirectComposition overlays.

cc/output/gl_renderer.cc

Index: cc/output/gl_renderer.cc
diff --git a/cc/output/gl_renderer.cc b/cc/output/gl_renderer.cc
index 201bf720bed11aa7f42034ba12f3029b7423e811..eb3d145ebcd6cb415c77480bb96d04a78d40e156 100644
--- a/cc/output/gl_renderer.cc
+++ b/cc/output/gl_renderer.cc
@@ -3272,10 +3272,12 @@ void GLRenderer::ScheduleDCLayers() {
           dc_layer_overlay.shared_state->opacity, is_clipped, clip_rect,
           z_order, transform);
     }
-    gl_->ScheduleDCLayerCHROMIUM(ids_to_send, texture_ids, contents_rect,
-                                 dc_layer_overlay.background_color,
-                                 dc_layer_overlay.edge_aa_mask, bounds_rect,
-                                 filter);
+    base::Pickle color_space_data;
+    dc_layer_overlay.color_space.Serialize(&color_space_data);

[hubbe, 2017/06/20 18:23:28]

This seems a little weird, shouldn't the gl layer do the pickling?

+    gl_->ScheduleDCLayerCHROMIUM(
+        ids_to_send, texture_ids, contents_rect,
+        dc_layer_overlay.background_color, dc_layer_overlay.edge_aa_mask,
+        bounds_rect, filter, color_space_data.size(), color_space_data.data());
   }
 
   // Take the number of copied render passes in this frame, and use 3 times that