Moves MruWindowTracker to WmShell

ash/mus/bridge/wm_shell_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 "ash/mus/bridge/wm_shell_mus.h"
 
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shell_window_ids.h"
 #include "ash/common/wm/window_resizer.h"
 #include "ash/common/wm_activation_observer.h"
@@ skipping 71 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(SessionStateDelegateStub);
 };
 
 }  // namespace
 
 WmShellMus::WmShellMus(::mus::WindowTreeClient* client)
     : client_(client), session_state_delegate_(new SessionStateDelegateStub) {
   client_->AddObserver(this);
   WmShell::Set(this);
+
+  CreateMruWindowTracker();
 }
 
 WmShellMus::~WmShellMus() {
+  DeleteMruWindowTracker();
   RemoveClientObserver();
   WmShell::Set(nullptr);
 }
 
 // static
 WmShellMus* WmShellMus::Get() {
   return static_cast<WmShellMus*>(WmShell::Get());
 }
 
 void WmShellMus::AddRootWindowController(
@@ skipping 48 matching lines @@
 
 WmWindow* WmShellMus::GetRootWindowForDisplayId(int64_t display_id) {
   return GetRootWindowControllerWithDisplayId(display_id)->GetWindow();
 }
 
 WmWindow* WmShellMus::GetRootWindowForNewWindows() {
   NOTIMPLEMENTED();
   return root_window_controllers_[0]->GetWindow();
 }
 
-std::vector<WmWindow*> WmShellMus::GetMruWindowList() {
-  NOTIMPLEMENTED();
-  return std::vector<WmWindow*>();
-}
-
-std::vector<WmWindow*> WmShellMus::GetMruWindowListIgnoreModals() {
-  NOTIMPLEMENTED();
-  return std::vector<WmWindow*>();
-}
-
 bool WmShellMus::IsForceMaximizeOnFirstRun() {
   NOTIMPLEMENTED();
   return false;
 }
 
 bool WmShellMus::CanShowWindowForUser(WmWindow* window) {
   NOTIMPLEMENTED();
   return true;
 }
 
@@ skipping 87 matching lines @@
                     OnWindowActivated(gained_active, lost_active));
 }
 
 void WmShellMus::OnWillDestroyClient(::mus::WindowTreeClient* client) {
   DCHECK_EQ(client, client_);
   RemoveClientObserver();
 }
 
 }  // namespace mus
 }  // namespace ash