Converts ShellObserver from aura::Window to ash::WmWindow

ash/aura/wm_root_window_controller_aura.cc

 // Copyright 2016 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/aura/wm_root_window_controller_aura.h"
 
 #include "ash/aura/wm_shelf_aura.h"
 #include "ash/aura/wm_shell_aura.h"
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/wm_root_window_controller_observer.h"
@@ skipping 106 matching lines @@
   observers_.RemoveObserver(observer);
 }
 
 void WmRootWindowControllerAura::OnDisplayWorkAreaInsetsChanged() {
   FOR_EACH_OBSERVER(WmRootWindowControllerObserver, observers_,
                     OnWorkAreaChanged());
 }
 
 void WmRootWindowControllerAura::OnFullscreenStateChanged(
     bool is_fullscreen,
-    aura::Window* root_window) {
-  if (root_window != root_window_controller_->GetRootWindow())
+    WmWindow* root_window) {
+  if (WmWindowAura::GetAuraWindow(root_window) !=
+      root_window_controller_->GetRootWindow())
     return;
 
   FOR_EACH_OBSERVER(WmRootWindowControllerObserver, observers_,
                     OnFullscreenStateChanged(is_fullscreen));
 }
 
 void WmRootWindowControllerAura::OnShelfAlignmentChanged(
-    aura::Window* root_window) {
-  if (root_window != root_window_controller_->GetRootWindow())
+    WmWindow* root_window) {
+  if (WmWindowAura::GetAuraWindow(root_window) !=
+      root_window_controller_->GetRootWindow())
     return;
 
   FOR_EACH_OBSERVER(WmRootWindowControllerObserver, observers_,
                     OnShelfAlignmentChanged());
 }
 
 }  // namespace ash