Refactoring display configuration state to allow generic state objects

ash/touch/touch_observer_hud.cc

Index: ash/touch/touch_observer_hud.cc
diff --git a/ash/touch/touch_observer_hud.cc b/ash/touch/touch_observer_hud.cc
index 8efc887d6d7b4cf6c559eba9af597748291f55b1..023d16079e0bd73c3413aec5ecd0b78a664e4b52 100644
--- a/ash/touch/touch_observer_hud.cc
+++ b/ash/touch/touch_observer_hud.cc
@@ -104,7 +104,7 @@ void TouchObserverHUD::OnDisplayRemoved(const gfx::Display& old_display) {
 
 #if defined(OS_CHROMEOS)
 void TouchObserverHUD::OnDisplayModeChanged(
-    const std::vector<chromeos::OutputConfigurator::OutputSnapshot>& outputs) {
+    const chromeos::OutputConfigurator::DisplayStateList& outputs) {
   // Clear touch HUD for any change in display mode (single, dual extended, dual
   // mirrored, ...).
   Clear();