s/Move/Stack/ in names of stacking-related methods.

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..a806947f2bb5a1b6a759f7d81238fb100eabf2b4 100644
--- a/ui/aura_shell/modal_container_layout_manager.cc
+++ b/ui/aura_shell/modal_container_layout_manager.cc
@@ -135,7 +135,7 @@ bool ModalContainerLayoutManager::CanWindowReceiveEvents(
 void ModalContainerLayoutManager::AddModalWindow(aura::Window* window) {
   modal_windows_.push_back(window);
   CreateModalScreen();
-  container_->MoveChildToFront(window);
+  container_->StackChildAtTop(window);
   window->Activate();
 }
 
@@ -172,7 +172,7 @@ void ModalContainerLayoutManager::CreateModalScreen() {
       modal_screen_->GetNativeView()->layer()->GetAnimator());
   modal_screen_->Show();
   modal_screen_->GetNativeView()->layer()->SetOpacity(0.5f);
-  container_->MoveChildToFront(modal_screen_->GetNativeView());
+  container_->StackChildAtTop(modal_screen_->GetNativeView());
 }
 
 void ModalContainerLayoutManager::DestroyModalScreen() {