[mus+ash] Removes WmWindow from screen_dimmer and video_detector

ash/wm/workspace/workspace_layout_manager_unittest.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 "ash/wm/workspace/workspace_layout_manager.h"
 
 #include <string>
 #include <utility>
 
 #include "ash/accessibility_delegate.h"
@@ skipping 73 matching lines @@
 
 class TestShellObserver : public ShellObserver {
  public:
   TestShellObserver() : call_count_(0), is_fullscreen_(false) {
     Shell::Get()->AddShellObserver(this);
   }
 
   ~TestShellObserver() override { Shell::Get()->RemoveShellObserver(this); }
 
   void OnFullscreenStateChanged(bool is_fullscreen,
-                                WmWindow* root_window) override {
+                                aura::Window* root_window) override {
     call_count_++;
     is_fullscreen_ = is_fullscreen;
   }
 
   int call_count() const { return call_count_; }
 
   bool is_fullscreen() const { return is_fullscreen_; }
 
  private:
   int call_count_;
@@ skipping 1433 matching lines @@
   window->SetBounds(keyboard_bounds());
   wm::GetWindowState(window.get())->set_ignore_keyboard_bounds_change(true);
   wm::ActivateWindow(window.get());
 
   EXPECT_EQ(keyboard_bounds(), window->bounds());
   ShowKeyboard();
   EXPECT_EQ(keyboard_bounds(), window->bounds());
 }
 
 }  // namespace ash