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

chrome/browser/extensions/extension_garbage_collector_factory.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 "chrome/browser/extensions/extension_garbage_collector_factory.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "build/build_config.h"
 #include "chrome/browser/extensions/extension_garbage_collector.h"
@@ skipping 30 matching lines @@
   DependsOn(InstallTrackerFactory::GetInstance());
 }
 
 ExtensionGarbageCollectorFactory::~ExtensionGarbageCollectorFactory() {}
 
 // static
 std::unique_ptr<KeyedService>
 ExtensionGarbageCollectorFactory::BuildInstanceFor(
     content::BrowserContext* context) {
 #if defined(OS_CHROMEOS)
-  return base::WrapUnique(new ExtensionGarbageCollectorChromeOS(context));
+  return base::MakeUnique<ExtensionGarbageCollectorChromeOS>(context);
 #else
-  return base::WrapUnique(new ExtensionGarbageCollector(context));
+  return base::MakeUnique<ExtensionGarbageCollector>(context);
 #endif
 }
 
 KeyedService* ExtensionGarbageCollectorFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   return BuildInstanceFor(context).release();
 }
 
 bool ExtensionGarbageCollectorFactory::ServiceIsCreatedWithBrowserContext()
     const {
   return true;
 }
 
 bool ExtensionGarbageCollectorFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }
 
 }  // namespace extensions