aura: Rename OnPropertyChanged to OnWindowPropertyChanged.

ui/aura_shell/shadow_controller.cc

Index: ui/aura_shell/shadow_controller.cc
diff --git a/ui/aura_shell/shadow_controller.cc b/ui/aura_shell/shadow_controller.cc
index e2f2d8064a54ae88a3d048e6d6025366f33e97dc..37f2a7db6d36abcbdcfc7cd83a4be98fed5e5179 100644
--- a/ui/aura_shell/shadow_controller.cc
+++ b/ui/aura_shell/shadow_controller.cc
@@ -52,9 +52,9 @@ void ShadowController::OnWindowParentChanged(aura::Window* window,
   }
 }
 
-void ShadowController::OnPropertyChanged(aura::Window* window,
-                                         const char* name,
-                                         void* old) {
+void ShadowController::OnWindowPropertyChanged(aura::Window* window,
+                                               const char* name,
+                                               void* old) {
   if (name == aura::kShadowTypeKey)
     HandlePossibleShadowVisibilityChange(window);
 }