Update SupportsUserData uses with unique_ptr.

chrome/browser/search/instant_io_context.cc

 // Copyright 2013 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/search/instant_io_context.h"
 
+#include "base/memory/ptr_util.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/resource_request_info.h"
 #include "net/url_request/url_request.h"
 #include "url/gurl.h"
 
 using content::BrowserThread;
 
 namespace {
 
@@ skipping 26 matching lines @@
 
 InstantIOContext::~InstantIOContext() {
 }
 
 // static
 void InstantIOContext::SetUserDataOnIO(
     content::ResourceContext* resource_context,
     scoped_refptr<InstantIOContext> instant_io_context) {
   resource_context->SetUserData(
       InstantIOContext::kInstantIOContextKeyName,
-      new base::UserDataAdapter<InstantIOContext>(instant_io_context.get()));
+      base::MakeUnique<base::UserDataAdapter<InstantIOContext>>(
+          instant_io_context.get()));
 }
 
 // static
 void InstantIOContext::AddInstantProcessOnIO(
     scoped_refptr<InstantIOContext> instant_io_context,
     int process_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   instant_io_context->process_ids_.insert(process_id);
 }
 
@@ skipping 29 matching lines @@
   // so, allow this request since it's not going to another renderer.
   if (process_id == -1 || instant_io_context->IsInstantProcess(process_id))
     return true;
   return false;
 }
 
 bool InstantIOContext::IsInstantProcess(int process_id) const {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return process_ids_.find(process_id) != process_ids_.end();
 }