Moves app_list() and related functions from Shell to WmShell

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 <algorithm>
 #include <vector>
 
 #include "ash/common/accessibility_delegate.h"
 #include "ash/common/accessibility_types.h"
 #include "ash/common/ash_switches.h"
@@ skipping 502 matching lines @@
 // Tests that entering overview mode with an App-list active properly focuses
 // and activates the overview text filter window.
 TEST_F(WindowSelectorTest, TextFilterActive) {
   gfx::Rect bounds(0, 0, 400, 400);
   std::unique_ptr<aura::Window> window1(CreateWindow(bounds));
   wm::ActivateWindow(window1.get());
 
   EXPECT_TRUE(wm::IsActiveWindow(window1.get()));
   EXPECT_EQ(window1.get(), GetFocusedWindow());
 
-  WmShell::Get()->ToggleAppList();
+  Shell::Get()->ToggleAppList();
 
   // Activating overview cancels the App-list which normally would activate the
   // previously active |window1|. Overview mode should properly transfer focus
   // and activation to the text filter widget.
   ToggleOverview();
   EXPECT_FALSE(wm::IsActiveWindow(window1.get()));
   EXPECT_TRUE(wm::IsActiveWindow(GetFocusedWindow()));
   EXPECT_EQ(text_filter_widget()->GetNativeWindow(), GetFocusedWindow());
 }
 
@@ skipping 1630 matching lines @@
                           aura::client::WINDOW_MOVE_SOURCE_MOUSE));
   ASSERT_TRUE(resizer.get());
   gfx::Point location = resizer->GetInitialLocation();
   location.Offset(20, 20);
   resizer->Drag(location, 0);
   ToggleOverview();
   resizer->RevertDrag();
 }
 
 }  // namespace ash