Replace unique_ptr.reset/release with std::move under src/ui

ui/events/blink/compositor_thread_event_queue.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 "ui/events/blink/compositor_thread_event_queue.h"
 
 namespace ui {
 
 CompositorThreadEventQueue::CompositorThreadEventQueue() {}
 
 CompositorThreadEventQueue::~CompositorThreadEventQueue() {}
 
 // TODO(chongz): Support coalescing events across interleaved boundaries.
 // https://crbug.com/661601
 void CompositorThreadEventQueue::Queue(std::unique_ptr<EventWithCallback> event,
                                        base::TimeTicks timestamp_now) {
   if (!queue_.empty() && queue_.back()->CanCoalesceWith(*event)) {
     queue_.back()->CoalesceWith(event.get(), timestamp_now);
     return;
   }
 
   queue_.emplace_back(std::move(event));
 }
 
 std::unique_ptr<EventWithCallback> CompositorThreadEventQueue::Pop() {
   std::unique_ptr<EventWithCallback> result;
   if (!queue_.empty()) {
-    result.reset(queue_.front().release());
+    result = std::move(queue_.front());
     queue_.pop_front();
   }
   return result;
 }
 
 }  // namespace ui