Move event handler to window_selector to ensure correct lifetime.

ash/wm/overview/window_selector_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/root_window_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/shell_test_api.h"
 #include "ash/wm/mru_window_tracker.h"
@@ skipping 36 matching lines @@
   void ToggleOverview() {
     ash::Shell::GetInstance()->window_selector_controller()->ToggleOverview();
   }
 
   void Cycle(WindowSelector::Direction direction) {
     ash::Shell::GetInstance()->window_selector_controller()->
         HandleCycleWindow(direction);
   }
 
   void StopCycling() {
-    ash::Shell::GetInstance()->window_selector_controller()->AltKeyReleased();
+    ash::Shell::GetInstance()->window_selector_controller()->window_selector_->
+        SelectWindow();
   }
 
   void FireOverviewStartTimer() {
     // Calls the method to start overview mode which is normally called by the
     // timer. The timer will still fire and call this method triggering the
     // DCHECK that overview mode was not already started, except that we call
     // StopCycling before the timer has a chance to fire.
     ash::Shell::GetInstance()->window_selector_controller()->window_selector_->
         StartOverview();
   }
@@ skipping 211 matching lines @@
   root_windows[0]->bounds().Contains(
       ToEnclosingRect(GetTransformedBounds(window2.get())));
   root_windows[1]->bounds().Contains(
       ToEnclosingRect(GetTransformedBounds(window3.get())));
   root_windows[1]->bounds().Contains(
       ToEnclosingRect(GetTransformedBounds(window4.get())));
 }
 
 }  // namespace internal
 }  // namespace ash