Use real colorspace for DirectComposition overlays.

cc/output/dc_layer_overlay.h

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_OUTPUT_DC_LAYER_OVERLAY_H_
 #define CC_OUTPUT_DC_LAYER_OVERLAY_H_
 
 #include "base/memory/ref_counted.h"
 #include "cc/quads/render_pass.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 42 matching lines @@
   gfx::RectF bounds_rect;
   // The background color property for the DCLayer.
   SkColor background_color = SK_ColorTRANSPARENT;
   // The edge anti-aliasing mask property for the DCLayer.
   unsigned edge_aa_mask = 0;
   // The minification and magnification filters for the DCLayer.
   unsigned filter;
   // If |rpdq| is present, then the renderer must draw the filter effects and
   // copy the result into an IOSurface.
   const RenderPassDrawQuad* rpdq = nullptr;
+
+  gfx::ColorSpace color_space;
 };
 
 typedef std::vector<DCLayerOverlay> DCLayerOverlayList;
 
 class DCLayerOverlayProcessor {
  public:
   enum DCLayerResult {
     DC_LAYER_SUCCESS,
     DC_LAYER_FAILED_QUAD_BLEND_MODE,
     DC_LAYER_FAILED_TEXTURE_NOT_CANDIDATE,
@@ skipping 20 matching lines @@
                              DCLayerOverlay* ca_layer_overlay);
 
   gfx::Rect previous_frame_underlay_rect_;
   gfx::Rect previous_occlusion_bounding_box_;
   gfx::RectF previous_display_rect_;
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_DC_LAYER_OVERLAY_H_