Re-write many calls to WrapUnique() with MakeUnique()

services/ui/ws/display_manager.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 "services/ui/ws/display_manager.h"
 
 #include "base/memory/ptr_util.h"
 #include "services/ui/ws/display.h"
 #include "services/ui/ws/display_manager_delegate.h"
 #include "services/ui/ws/event_dispatcher.h"
@@ skipping 18 matching lines @@
 
 DisplayManager::~DisplayManager() {
   user_id_tracker_->RemoveObserver(this);
   DestroyAllDisplays();
 }
 
 UserDisplayManager* DisplayManager::GetUserDisplayManager(
     const UserId& user_id) {
   if (!user_display_managers_.count(user_id)) {
     user_display_managers_[user_id] =
-        base::WrapUnique(new UserDisplayManager(this, delegate_, user_id));
+        base::MakeUnique<UserDisplayManager>(this, delegate_, user_id);
   }
   return user_display_managers_[user_id].get();
 }
 
 void DisplayManager::AddDisplay(Display* display) {
   DCHECK_EQ(0u, pending_displays_.count(display));
   pending_displays_.insert(display);
 }
 
 void DisplayManager::DestroyDisplay(Display* display) {
@@ skipping 100 matching lines @@
   }
 
   WindowManagerState* current_window_manager_state =
       delegate_->GetWindowManagerStateForUser(active_id);
   if (current_window_manager_state)
     current_window_manager_state->Activate(mouse_location_on_screen);
 }
 
 }  // namespace ws
 }  // namespace ui