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..8318ffb58a997879a31eb1eebca62b2d2a10efa5 100644
--- a/ash/touch/touch_observer_hud.cc
+++ b/ash/touch/touch_observer_hud.cc
@@ -103,8 +103,8 @@ void TouchObserverHUD::OnDisplayRemoved(const gfx::Display& old_display) {
 }
 
 #if defined(OS_CHROMEOS)
-void TouchObserverHUD::OnDisplayModeChanged(
-    const std::vector<chromeos::OutputConfigurator::OutputSnapshot>& outputs) {
+void TouchObserverHUD::OnDisplayModeChanged(const std::vector<
+    chromeos::OutputConfigurator::InternalDisplayState>& outputs) {
   // Clear touch HUD for any change in display mode (single, dual extended, dual
   // mirrored, ...).
   Clear();