cc: Clarify that color spaces are for raster

cc/trees/layer_tree_impl.h

 // Copyright 2012 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_TREES_LAYER_TREE_IMPL_H_
 #define CC_TREES_LAYER_TREE_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 214 matching lines @@
   void set_painted_device_scale_factor(float painted_device_scale_factor) {
     painted_device_scale_factor_ = painted_device_scale_factor;
   }
   float painted_device_scale_factor() const {
     return painted_device_scale_factor_;
   }
 
   void set_content_source_id(uint32_t id) { content_source_id_ = id; }
   uint32_t content_source_id() { return content_source_id_; }
 
-  void SetDeviceColorSpace(const gfx::ColorSpace& device_color_space);
-  const gfx::ColorSpace& device_color_space() const {
-    return device_color_space_;
+  void SetRasterColorSpace(const gfx::ColorSpace& raster_color_space);
+  const gfx::ColorSpace& raster_color_space() const {
+    return raster_color_space_;
   }
 
   SyncedElasticOverscroll* elastic_overscroll() {
     return elastic_overscroll_.get();
   }
   const SyncedElasticOverscroll* elastic_overscroll() const {
     return elastic_overscroll_.get();
   }
 
   SyncedBrowserControls* top_controls_shown_ratio() {
@@ skipping 241 matching lines @@
   int outer_viewport_scroll_layer_id_;
 
   LayerSelection selection_;
 
   scoped_refptr<SyncedProperty<ScaleGroup>> page_scale_factor_;
   float min_page_scale_factor_;
   float max_page_scale_factor_;
 
   float device_scale_factor_;
   float painted_device_scale_factor_;
-  gfx::ColorSpace device_color_space_;
+  gfx::ColorSpace raster_color_space_;
 
   uint32_t content_source_id_;
 
   scoped_refptr<SyncedElasticOverscroll> elastic_overscroll_;
 
   std::unique_ptr<OwnedLayerImplList> layers_;
   LayerImplMap layer_id_map_;
   LayerImplList layer_list_;
   // Set of layers that need to push properties.
   std::unordered_set<LayerImpl*> layers_that_should_push_properties_;
@@ skipping 58 matching lines @@
 
   std::unique_ptr<PendingPageScaleAnimation> pending_page_scale_animation_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LayerTreeImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_IMPL_H_