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

ui/events/test/event_generator.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 "ui/events/test/event_generator.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 525 matching lines @@
 void EventGenerator::ReleaseKey(ui::KeyboardCode key_code, int flags) {
   DispatchKeyEvent(false, key_code, flags);
 }
 
 void EventGenerator::Dispatch(ui::Event* event) {
   DoDispatchEvent(event, async_);
 }
 
 void EventGenerator::Init(gfx::NativeWindow root_window,
                           gfx::NativeWindow window_context) {
-  ui::SetEventTickClockForTesting(WrapUnique(new TestTickClock()));
+  ui::SetEventTickClockForTesting(base::MakeUnique<TestTickClock>());
   delegate()->SetContext(this, root_window, window_context);
   if (window_context)
     current_location_ = delegate()->CenterOfWindow(window_context);
   current_target_ = delegate()->GetTargetAt(current_location_);
 }
 
 void EventGenerator::DispatchKeyEvent(bool is_press,
                                       ui::KeyboardCode key_code,
                                       int flags) {
 #if defined(OS_WIN)
@@ skipping 110 matching lines @@
   return default_delegate;
 }
 
 EventGeneratorDelegate* EventGenerator::delegate() {
   return const_cast<EventGeneratorDelegate*>(
       const_cast<const EventGenerator*>(this)->delegate());
 }
 
 }  // namespace test
 }  // namespace ui