Send the ICC profile to the compositor under aura.

ui/aura/window_tree_host.cc

Index: ui/aura/window_tree_host.cc
diff --git a/ui/aura/window_tree_host.cc b/ui/aura/window_tree_host.cc
index 5164fe65a58cac4cbe9a61f1ce84d2dd04f955c4..c1f97ff1cf7481f2d73b40211decfffa2d615a76 100644
--- a/ui/aura/window_tree_host.cc
+++ b/ui/aura/window_tree_host.cc
@@ -26,6 +26,7 @@
 #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 {
 
@@ -68,6 +69,8 @@ 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) {