[mus+ash] Removes WmWindow from ash (app_list, frame, metrics, session, system, wallpaper)

ash/test/test_session_state_delegate.cc

 // Copyright (c) 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/test/test_session_state_delegate.h"
 
 namespace ash {
 namespace test {
 
 TestSessionStateDelegate::TestSessionStateDelegate() = default;
 TestSessionStateDelegate::~TestSessionStateDelegate() = default;
 
 void TestSessionStateDelegate::SetUserImage(const gfx::ImageSkia& user_image) {
   user_image_ = user_image;
 }
 
-bool TestSessionStateDelegate::ShouldShowAvatar(WmWindow* window) const {
+bool TestSessionStateDelegate::ShouldShowAvatar(aura::Window* window) const {
   return !user_image_.isNull();
 }
 
 gfx::ImageSkia TestSessionStateDelegate::GetAvatarImageForWindow(
-    WmWindow* window) const {
+    aura::Window* window) const {
   return gfx::ImageSkia();
 }
 
 }  // namespace test
 }  // namespace ash