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

ipc/ipc_channel_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 "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "ipc/ipc_channel_factory.h"
 #include "ipc/ipc_channel_mojo.h"
 
 namespace IPC {
@@ skipping 33 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(PlatformChannelFactory);
 };
 
 } // namespace
 
 // static
 std::unique_ptr<ChannelFactory> ChannelFactory::Create(
     const ChannelHandle& handle,
     Channel::Mode mode,
     const scoped_refptr<base::SingleThreadTaskRunner>& ipc_task_runner) {
-  return base::WrapUnique(
-      new PlatformChannelFactory(handle, mode, ipc_task_runner));
+  return base::MakeUnique<PlatformChannelFactory>(handle, mode,
+                                                  ipc_task_runner);
 }
 
 }  // namespace IPC