mash: Convert FocusCycler to wm common types and move to //ash/common

ash/wm/window_cycle_controller_unittest.cc

 // Copyright 2014 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/wm/window_cycle_controller.h"
 
 #include <algorithm>
 #include <memory>
 
 #include "ash/aura/wm_window_aura.h"
+#include "ash/common/focus_cycler.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shell_window_ids.h"
 #include "ash/common/wm/window_state.h"
+#include "ash/common/wm_shell.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/shelf_test_api.h"
 #include "ash/test/shelf_view_test_api.h"
 #include "ash/test/test_shelf_delegate.h"
 #include "ash/test/test_shell_delegate.h"
 #include "ash/wm/window_cycle_list.h"
 #include "ash/wm/window_state_aura.h"
@@ skipping 99 matching lines @@
   WindowCycleController* controller =
       Shell::GetInstance()->window_cycle_controller();
 
   // Create a single test window.
   std::unique_ptr<Window> window0(CreateTestWindowInShellWithId(0));
   wm::ActivateWindow(window0.get());
   EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
 
   // Rotate focus, this should move focus to another window that isn't part of
   // the default container.
-  Shell::GetInstance()->RotateFocus(Shell::FORWARD);
+  WmShell::Get()->focus_cycler()->RotateFocus(FocusCycler::FORWARD);
   EXPECT_FALSE(wm::IsActiveWindow(window0.get()));
 
   // Cycling should activate the window.
   controller->HandleCycleWindow(WindowCycleController::FORWARD);
   EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
 }
 
 TEST_F(WindowCycleControllerTest, HandleCycleWindow) {
   WindowCycleController* controller =
       Shell::GetInstance()->window_cycle_controller();
@@ skipping 491 matching lines @@
   generator.PressKey(ui::VKEY_TAB, ui::EF_ALT_DOWN);
   EXPECT_EQ(0u, key_count.GetCountAndReset());
   generator.ReleaseKey(ui::VKEY_TAB, ui::EF_ALT_DOWN);
   EXPECT_EQ(0u, key_count.GetCountAndReset());
   generator.ReleaseKey(ui::VKEY_MENU, ui::EF_NONE);
   EXPECT_TRUE(wm::GetWindowState(w1.get())->IsActive());
   EXPECT_EQ(0u, key_count.GetCountAndReset());
 }
 
 }  // namespace ash