[mus]Add FrameGenerator::SetHighContrastMode(bool)

services/ui/ws/display_manager.cc

Index: services/ui/ws/display_manager.cc
diff --git a/services/ui/ws/display_manager.cc b/services/ui/ws/display_manager.cc
index 06b19e60b73a378a599663cdf2f2de73e314b891..b671322c7bcb0b82d0571f584d58ae4a6fc4f50e 100644
--- a/services/ui/ws/display_manager.cc
+++ b/services/ui/ws/display_manager.cc
@@ -13,6 +13,7 @@
 #include "services/ui/ws/display.h"
 #include "services/ui/ws/display_binding.h"
 #include "services/ui/ws/event_dispatcher.h"
+#include "services/ui/ws/frame_generator.h"
 #include "services/ui/ws/server_window.h"
 #include "services/ui/ws/user_display_manager.h"
 #include "services/ui/ws/user_display_manager_delegate.h"
@@ -164,6 +165,13 @@ void DisplayManager::OnDisplayAcceleratedWidgetAvailable(Display* display) {
   window_server_->OnDisplayReady(display, is_first_display);
 }
 
+void DisplayManager::SetHighContrastMode(bool enabled) {
+  for (Display* display : displays_) {
+    display->platform_display()->GetFrameGenerator()->SetHighContrastMode(
+        enabled);
+  }
+}
+
 void DisplayManager::OnActiveUserIdChanged(const UserId& previously_active_id,
                                            const UserId& active_id) {
   WindowManagerState* previous_window_manager_state =