Update SupportsUserData uses with unique_ptr.

components/offline_items_collection/core/android/offline_content_aggregator_bridge.cc

 // Copyright 2017 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 "components/offline_items_collection/core/android/offline_content_aggregator_bridge.h"
 
 #include "base/android/jni_string.h"
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "components/offline_items_collection/core/android/offline_item_bridge.h"
@@ skipping 37 matching lines @@
 // static.
 bool OfflineContentAggregatorBridge::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 // static
 base::android::ScopedJavaLocalRef<jobject>
 OfflineContentAggregatorBridge::GetBridgeForOfflineContentAggregator(
     OfflineContentAggregator* aggregator) {
   if (!aggregator->GetUserData(kOfflineContentAggregatorBridgeUserDataKey)) {
-    aggregator->SetUserData(kOfflineContentAggregatorBridgeUserDataKey,
-                            new OfflineContentAggregatorBridge(aggregator));
+    aggregator->SetUserData(
+        kOfflineContentAggregatorBridgeUserDataKey,
+        base::WrapUnique(new OfflineContentAggregatorBridge(aggregator)));
   }
   OfflineContentAggregatorBridge* bridge =
       static_cast<OfflineContentAggregatorBridge*>(
           aggregator->GetUserData(kOfflineContentAggregatorBridgeUserDataKey));
 
   return ScopedJavaLocalRef<jobject>(bridge->java_ref_);
 }
 
 OfflineContentAggregatorBridge::OfflineContentAggregatorBridge(
     OfflineContentAggregator* aggregator)
@@ skipping 124 matching lines @@
   if (java_ref_.is_null())
     return;
 
   JNIEnv* env = AttachCurrentThread();
   Java_OfflineContentAggregatorBridge_onItemUpdated(
       env, java_ref_.obj(), OfflineItemBridge::CreateOfflineItem(env, &item));
 }
 
 }  // namespace android
 }  // namespace offline_items_collection