aura: Rename OnPropertyChanged to OnWindowPropertyChanged.

ui/aura_shell/modal_container_layout_manager.cc

Index: ui/aura_shell/modal_container_layout_manager.cc
diff --git a/ui/aura_shell/modal_container_layout_manager.cc b/ui/aura_shell/modal_container_layout_manager.cc
index 4a42db2c1564aa00cdcc86f8b1296a3aa679d69d..c16df01941f742a6a8651945528106251e7a4060 100644
--- a/ui/aura_shell/modal_container_layout_manager.cc
+++ b/ui/aura_shell/modal_container_layout_manager.cc
@@ -91,9 +91,9 @@ void ModalContainerLayoutManager::SetChildBounds(
 ////////////////////////////////////////////////////////////////////////////////
 // ModalContainerLayoutManager, aura::WindowObserver implementation:
 
-void ModalContainerLayoutManager::OnPropertyChanged(aura::Window* window,
-                                                    const char* key,
-                                                    void* old) {
+void ModalContainerLayoutManager::OnWindowPropertyChanged(aura::Window* window,
+                                                          const char* key,
+                                                          void* old) {
   if (key != aura::kModalKey)
     return;