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

ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.mm

 // Copyright 2015 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 "ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.h"
 
 #include <memory>
 #include <set>
 #include <utility>
 
@@ skipping 384 matching lines @@
                                               main_context->network_delegate());
   main_context->set_job_factory(main_job_factory_.get());
   main_context->set_network_quality_estimator(
       io_thread_globals->network_quality_estimator.get());
 
   // Setup SDCH for this profile.
   sdch_manager_.reset(new net::SdchManager);
   sdch_policy_.reset(new net::SdchOwner(sdch_manager_.get(), main_context));
   main_context->set_sdch_manager(sdch_manager_.get());
   sdch_policy_->EnablePersistentStorage(
-      base::WrapUnique(new SdchOwnerPrefStorage(network_json_store_.get())));
+      base::MakeUnique<SdchOwnerPrefStorage>(network_json_store_.get()));
 
   lazy_params_.reset();
 }
 
 ChromeBrowserStateIOData::AppRequestContext*
 ChromeBrowserStateImplIOData::InitializeAppRequestContext(
     net::URLRequestContext* main_context) const {
   // Copy most state from the main context.
   AppRequestContext* context = new AppRequestContext();
   context->CopyFrom(main_context);
@@ skipping 59 matching lines @@
     const base::Closure& completion) {
   DCHECK_CURRENTLY_ON(web::WebThread::IO);
   DCHECK(initialized());
 
   DCHECK(transport_security_state());
   // Completes synchronously.
   transport_security_state()->DeleteAllDynamicDataSince(time);
   DCHECK(http_server_properties_manager_);
   http_server_properties_manager_->Clear(completion);
 }