propagate display color space changes

ui/display/display_change_notifier.cc

 // Copyright 2014 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.
 
 #include "ui/display/display_change_notifier.h"
 
 #include <stdint.h>
 
 #include "ui/display/display.h"
 #include "ui/display/display_observer.h"
@@ skipping 62 matching lines @@
 
     if (new_it->rotation() != old_it->rotation())
       metrics |= DisplayObserver::DISPLAY_METRIC_ROTATION;
 
     if (new_it->work_area() != old_it->work_area())
       metrics |= DisplayObserver::DISPLAY_METRIC_WORK_AREA;
 
     if (new_it->device_scale_factor() != old_it->device_scale_factor())
       metrics |= DisplayObserver::DISPLAY_METRIC_DEVICE_SCALE_FACTOR;
 
+    if (new_it->color_space() != old_it->color_space())
+      metrics |= DisplayObserver::DISPLAY_METRIC_COLOR_SPACE;
+
     if (metrics != DisplayObserver::DISPLAY_METRIC_NONE) {
       for (DisplayObserver& observer : observer_list_)
         observer.OnDisplayMetricsChanged(*new_it, metrics);
     }
   }
 }
 
 }  // namespace display