Update SupportsUserData uses with unique_ptr.

content/renderer/internal_document_state_data.cc

 // Copyright (c) 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 "content/renderer/internal_document_state_data.h"
 
+#include "base/memory/ptr_util.h"
 #include "content/public/renderer/document_state.h"
 #include "third_party/WebKit/public/web/WebDataSource.h"
 
 namespace content {
 
 namespace {
 
 // Key InternalDocumentStateData is stored under in DocumentState.
 const char kUserDataKey[] = "InternalDocumentStateData";
 
@@ skipping 14 matching lines @@
 
 // static
 InternalDocumentStateData* InternalDocumentStateData::FromDocumentState(
     DocumentState* ds) {
   if (!ds)
     return NULL;
   InternalDocumentStateData* data = static_cast<InternalDocumentStateData*>(
       ds->GetUserData(&kUserDataKey));
   if (!data) {
     data = new InternalDocumentStateData;
-    ds->SetUserData(&kUserDataKey, data);
+    ds->SetUserData(&kUserDataKey, base::WrapUnique(data));
   }
   return data;
 }
 
 InternalDocumentStateData::~InternalDocumentStateData() {
 }
 
 }  // namespace content