Send the ICC profile to the compositor under aura.

ui/aura/window_tree_host.cc

 // Copyright (c) 2013 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/aura/window_tree_host.h"
 
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/aura/client/capture_client.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_targeter.h"
 #include "ui/aura/window_tree_host_observer.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/input_method_factory.h"
 #include "ui/base/view_prop.h"
 #include "ui/compositor/dip_util.h"
 #include "ui/compositor/layer.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/point3_f.h"
 #include "ui/gfx/geometry/point_conversions.h"
 #include "ui/gfx/geometry/rect_conversions.h"
 #include "ui/gfx/geometry/size_conversions.h"
+#include "ui/gfx/icc_profile.h"
 
 namespace aura {
 
 const char kWindowTreeHostForAcceleratedWidget[] =
     "__AURA_WINDOW_TREE_HOST_ACCELERATED_WIDGET__";
 
 float GetDeviceScaleFactorFromDisplay(Window* window) {
   display::Display display =
       display::Screen::GetScreen()->GetDisplayNearestWindow(window);
   DCHECK(display.is_valid());
@@ skipping 22 matching lines @@
   InitCompositor();
   UpdateRootWindowSize(GetBounds().size());
   Env::GetInstance()->NotifyHostInitialized(this);
   window()->Show();
 }
 
 void WindowTreeHost::InitCompositor() {
   compositor_->SetScaleAndSize(GetDeviceScaleFactorFromDisplay(window()),
                                GetBounds().size());
   compositor_->SetRootLayer(window()->layer());
+  compositor_->SetDisplayColorSpace(
+      gfx::ICCProfile::FromBestMonitor().GetColorSpace());

[sky, 2016/09/07 20:15:58]

What is FromBestMonitor? Shouldn't you pick the profile based on the monitor the
WindowTreeHost is going to be used on, and change it if moved to a different
monitor?

[hubbe1, 2016/09/07 20:29:25]

Yes we should, but we don't have the ability yet.
It's a TODO at this point. (I can add an actual TODO if you like)

[sky, 2016/09/07 21:41:47]

Yes please.

 }
 
 void WindowTreeHost::AddObserver(WindowTreeHostObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void WindowTreeHost::RemoveObserver(WindowTreeHostObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
@@ skipping 240 matching lines @@
   client::CursorClient* cursor_client = client::GetCursorClient(window());
   if (cursor_client) {
     const display::Display& display =
         display::Screen::GetScreen()->GetDisplayNearestWindow(window());
     cursor_client->SetDisplay(display);
   }
   dispatcher()->OnCursorMovedToRootLocation(root_location);
 }
 
 }  // namespace aura