Converts overview to use common ash types

mash/wm/bridge/wm_globals_mus.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 "mash/wm/bridge/wm_globals_mus.h"
 
 #include "ash/wm/common/window_resizer.h"
 #include "ash/wm/common/wm_activation_observer.h"
 #include "ash/wm/common/wm_shell_window_ids.h"
 #include "base/memory/ptr_util.h"
@@ skipping 61 matching lines @@
 }
 
 ash::wm::WmWindow* WmGlobalsMus::GetFocusedWindow() {
   return WmWindowMus::Get(connection_->GetFocusedWindow());
 }
 
 ash::wm::WmWindow* WmGlobalsMus::GetActiveWindow() {
   return GetToplevelAncestor(connection_->GetFocusedWindow());
 }
 
+ash::wm::WmWindow* WmGlobalsMus::GetPrimaryRootWindow() {
+  return root_window_controllers_[0]->GetWindow();
+}
+
 ash::wm::WmWindow* WmGlobalsMus::GetRootWindowForDisplayId(int64_t display_id) {
   return GetRootWindowControllerWithDisplayId(display_id)->GetWindow();
 }
 
 ash::wm::WmWindow* WmGlobalsMus::GetRootWindowForNewWindows() {
   NOTIMPLEMENTED();
   return root_window_controllers_[0]->GetWindow();
 }
 
+std::vector<ash::wm::WmWindow*> WmGlobalsMus::GetMruWindowList() {
+  NOTIMPLEMENTED();
+  return std::vector<ash::wm::WmWindow*>();
+}
+
 std::vector<ash::wm::WmWindow*> WmGlobalsMus::GetMruWindowListIgnoreModals() {
   NOTIMPLEMENTED();
   return std::vector<ash::wm::WmWindow*>();
 }
 
 bool WmGlobalsMus::IsForceMaximizeOnFirstRun() {
   NOTIMPLEMENTED();
   return false;
 }
 
@@ skipping 85 matching lines @@
 }
 
 void WmGlobalsMus::RemoveConnectionObserver() {
   if (!connection_)
     return;
 
   connection_->RemoveObserver(this);
   connection_ = nullptr;
 }
 
+// TODO: support OnAttemptToReactivateWindow, http://crbug.com/615114.
 void WmGlobalsMus::OnWindowTreeFocusChanged(mus::Window* gained_focus,
                                             mus::Window* lost_focus) {
   WmWindowMus* gained_active = GetToplevelAncestor(gained_focus);
   WmWindowMus* lost_active = GetToplevelAncestor(gained_focus);
   if (gained_active == lost_active)
     return;
 
   FOR_EACH_OBSERVER(ash::wm::WmActivationObserver, activation_observers_,
                     OnWindowActivated(gained_active, lost_active));
 }
 
 void WmGlobalsMus::OnWillDestroyConnection(
     mus::WindowTreeConnection* connection) {
   DCHECK_EQ(connection, connection_);
   RemoveConnectionObserver();
 }
 
 }  // namespace wm
 }  // namespace mash