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

chrome/browser/chrome_browser_main.cc

 // Copyright (c) 2012 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/chrome_browser_main.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 1285 matching lines @@
 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 
 #if defined(OS_LINUX) || defined(OS_OPENBSD)
   // Set the product channel for crash reports.
   base::debug::SetCrashKeyValue(crash_keys::kChannel,
                                 chrome::GetChannelString());
 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD)
 
   // Initialize tracking synchronizer system.
   tracking_synchronizer_ = new metrics::TrackingSynchronizer(
-      base::WrapUnique(new base::DefaultTickClock()),
+      base::MakeUnique<base::DefaultTickClock>(),
       base::Bind(&metrics::ContentTrackingSynchronizerDelegate::Create));
 
 #if defined(OS_MACOSX)
   // Get the Keychain API to register for distributed notifications on the main
   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
   // which doesn't. This ensures those notifications will get delivered
   // properly. See issue 37766.
   // (Note that the callback mask here is empty. I don't want to register for
   // any callbacks, I just want to initialize the mechanism.)
   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
@@ skipping 890 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif  // defined(OS_CHROMEOS)
 #endif  // defined(OS_ANDROID)
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }