nit: Pass ownership of CVDelegate to ContentVerifier using unique_ptr.

chrome/browser/extensions/extension_system_impl.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_system_impl.h"
 
 #include <algorithm>
 
 #include "apps/app_restore_service.h"
 #include "apps/app_restore_service_factory.h"
@@ skipping 179 matching lines @@
   TRACE_EVENT0("browser,startup", "ExtensionSystemImpl::Shared::Init");
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();
 
   navigation_observer_.reset(new NavigationObserver(profile_));
 
   bool allow_noisy_errors = !command_line->HasSwitch(switches::kNoErrorDialogs);
   ExtensionErrorReporter::Init(allow_noisy_errors);
 
   content_verifier_ = new ContentVerifier(
-      profile_, new ChromeContentVerifierDelegate(profile_));
+      profile_, base::MakeUnique<ChromeContentVerifierDelegate>(profile_));
 
   service_worker_manager_.reset(new ServiceWorkerManager(profile_));
 
   shared_user_script_master_.reset(new SharedUserScriptMaster(profile_));
 
   // ExtensionService depends on RuntimeData.
   runtime_data_.reset(new RuntimeData(ExtensionRegistry::Get(profile_)));
 
   bool autoupdate_enabled = !profile_->IsGuestSession() &&
                             !profile_->IsSystemProfile();
@@ skipping 252 matching lines @@
 void ExtensionSystemImpl::UnregisterExtensionWithRequestContexts(
     const std::string& extension_id,
     const UnloadedExtensionInfo::Reason reason) {
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&InfoMap::RemoveExtension, info_map(), extension_id, reason));
 }
 
 }  // namespace extensions