mash: Migrate SessionStateDelegate access to WmShell.

ash/shell/app_list.cc

 // Copyright (c) 2012 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 <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "ash/common/session/session_state_delegate.h"
+#include "ash/common/wm_shell.h"
 #include "ash/shell.h"
 #include "ash/shell/example_factory.h"
 #include "ash/shell/toplevel_window.h"
 #include "ash/shell_delegate.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/i18n/case_conversion.h"
 #include "base/i18n/string_search.h"
 #include "base/memory/scoped_vector.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 84 matching lines @@
         ToplevelWindow::CreateParams params;
         params.can_resize = true;
         ToplevelWindow::CreateToplevelWindow(params);
         break;
       }
       case NON_RESIZABLE_WINDOW: {
         ToplevelWindow::CreateToplevelWindow(ToplevelWindow::CreateParams());
         break;
       }
       case LOCK_SCREEN: {
-        Shell::GetInstance()->session_state_delegate()->LockScreen();
+        WmShell::Get()->GetSessionStateDelegate()->LockScreen();
         break;
       }
       case WIDGETS_WINDOW: {
         CreateWidgetsWindow();
         break;
       }
       case EXAMPLES_WINDOW: {
         views::examples::ShowExamplesWindow(
             views::examples::QUIT_ON_CLOSE, NULL,
             std::unique_ptr<ScopedVector<views::examples::ExampleBase>>());
@@ skipping 171 matching lines @@
 
   void StopSearch() override {
     // Nothing needs to be done.
   }
 
   void ViewInitialized() override {
     // Nothing needs to be done.
   }
 
   void Dismiss() override {
-    DCHECK(ash::Shell::HasInstance());
+    DCHECK(Shell::HasInstance());
     Shell::GetInstance()->DismissAppList();
   }
 
   void ViewClosing() override {
     // Nothing needs to be done.
   }
 
   void OpenSettings() override {
     // Nothing needs to be done.
   }
@@ skipping 36 matching lines @@
 };
 
 }  // namespace
 
 app_list::AppListViewDelegate* CreateAppListViewDelegate() {
   return new ExampleAppListViewDelegate;
 }
 
 }  // namespace shell
 }  // namespace ash