Revert "Remove aura and make a pure mojo::View version of the aura::Window FocusController."

examples/wm_flow/wm/frame_controller.cc

Index: examples/wm_flow/wm/frame_controller.cc
diff --git a/examples/wm_flow/wm/frame_controller.cc b/examples/wm_flow/wm/frame_controller.cc
index ee2208a91d748399b14e03e4a46c7c9ca3e1007e..e50a87c02b6c5b2ebdc9933890c67a0dae7e652b 100644
--- a/examples/wm_flow/wm/frame_controller.cc
+++ b/examples/wm_flow/wm/frame_controller.cc
@@ -99,6 +99,7 @@ FrameController::FrameController(
     mojo::Shell* shell,
     mojo::View* view,
     mojo::View** app_view,
+    aura::client::ActivationClient* activation_client,
     mojo::WindowManagerApp* window_manager_app)
     : view_(view),
       app_view_(mojo::View::Create(view->view_manager())),
@@ -106,6 +107,7 @@ FrameController::FrameController(
       frame_view_layout_manager_(new LayoutManager(this)),
       widget_(new views::Widget),
       maximized_(false),
+      activation_client_(activation_client),
       window_manager_app_(window_manager_app) {
   view_->AddChild(app_view_);
   view_->AddObserver(this);
@@ -144,7 +146,8 @@ void FrameController::ToggleMaximize() {
 }
 
 void FrameController::ActivateWindow() {
-  window_manager_app_->focus_controller()->ActivateView(view_);
+  aura::Window* window = window_manager_app_->GetWindowForViewId(view_->id());
+  activation_client_->ActivateWindow(window);
 }
 
 ////////////////////////////////////////////////////////////////////////////////