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

services/ui/ws/window_tree.cc

 // Copyright 2014 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/window_tree.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 376 matching lines @@
   window_server_->EmbedAtWindow(window, InvalidUserId(), std::move(client),
                                 flags,
                                 base::WrapUnique(new DefaultAccessPolicy));
   return true;
 }
 
 void WindowTree::DispatchInputEvent(ServerWindow* target,
                                     const ui::Event& event) {
   if (event_ack_id_) {
     // This is currently waiting for an event ack. Add it to the queue.
-    event_queue_.push(base::WrapUnique(new TargetedEvent(target, event)));
+    event_queue_.push(base::MakeUnique<TargetedEvent>(target, event));
     // TODO(sad): If the |event_queue_| grows too large, then this should notify
     // Display, so that it can stop sending events.
     return;
   }
 
   // If there are events in the queue, then store this new event in the queue,
   // and dispatch the latest event from the queue instead that still has a live
   // target.
   if (!event_queue_.empty()) {
-    event_queue_.push(base::WrapUnique(new TargetedEvent(target, event)));
+    event_queue_.push(base::MakeUnique<TargetedEvent>(target, event));
     return;
   }
 
   DispatchInputEventImpl(target, event);
 }
 
 bool WindowTree::IsWaitingForNewTopLevelWindow(uint32_t wm_change_id) {
   return waiting_for_top_level_window_info_ &&
          waiting_for_top_level_window_info_->wm_change_id == wm_change_id;
 }
@@ skipping 1263 matching lines @@
 }
 
 bool WindowTree::IsWindowRootOfAnotherTreeForAccessPolicy(
     const ServerWindow* window) const {
   WindowTree* tree = window_server_->GetTreeWithRoot(window);
   return tree && tree != this;
 }
 
 }  // namespace ws
 }  // namespace ui