mash: Migrate ShellDelegate ownership and access to WmShell.

ash/wm/lock_state_controller_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/wm/lock_state_controller.h"
 
 #include <memory>
 #include <utility>
 
 #include "ash/common/session/session_state_delegate.h"
@@ skipping 52 matching lines @@
     lock_state_controller_ = Shell::GetInstance()->lock_state_controller();
     lock_state_controller_->SetDelegate(
         std::move(lock_state_controller_delegate));
     lock_state_controller_->set_animator_for_test(test_animator_);
 
     test_api_.reset(new LockStateController::TestApi(lock_state_controller_));
 
     power_button_controller_ = Shell::GetInstance()->power_button_controller();
 
     shell_delegate_ =
-        static_cast<TestShellDelegate*>(Shell::GetInstance()->delegate());
+        static_cast<TestShellDelegate*>(WmShell::Get()->delegate());
   }
 
  protected:
   void GenerateMouseMoveEvent() {
     ui::test::EventGenerator generator(Shell::GetPrimaryRootWindow());
     generator.MoveMouseTo(10, 10);
   }
 
   int NumShutdownRequests() {
     return lock_state_controller_delegate_->num_shutdown_requests() +
@@ skipping 995 matching lines @@
   ReleasePowerButton();
 
   ExpectPreLockAnimationStarted();
 
   test_animator_->CompleteAllAnimations(true);
   EXPECT_EQ(1, lock_state_controller_delegate_->num_lock_requests());
 }
 
 }  // namespace test
 }  // namespace ash