color: Use ICCProfile from display::Display instead of FromBestMonitor

ui/aura/mus/window_tree_host_mus.cc

Index: ui/aura/mus/window_tree_host_mus.cc
diff --git a/ui/aura/mus/window_tree_host_mus.cc b/ui/aura/mus/window_tree_host_mus.cc
index 5e60905d5d1ed4472219b716b4076597c99e40cd..eeecd66bf2a933a5cba467e2fea798241a291e56 100644
--- a/ui/aura/mus/window_tree_host_mus.cc
+++ b/ui/aura/mus/window_tree_host_mus.cc
@@ -193,11 +193,6 @@ void WindowTreeHostMus::OnCloseRequest() {
   OnHostCloseRequested();
 }
 
-gfx::ICCProfile WindowTreeHostMus::GetICCProfileForCurrentDisplay() {
-  // TODO: This should read the profile from mus. crbug.com/647510
-  return gfx::ICCProfile();
-}
-
 void WindowTreeHostMus::MoveCursorToScreenLocationInPixels(
     const gfx::Point& location_in_pixels) {
   gfx::Point screen_location_in_pixels = location_in_pixels;