Remove raw base::DictionaryValue::Set in //extensions

extensions/browser/guest_view/app_view/app_view_guest.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 "extensions/browser/guest_view/app_view/app_view_guest.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
@@ skipping 250 matching lines @@
                                     app_runtime::OnEmbedRequested::kEventName);
   if (!has_event_listener) {
     callback.Run(nullptr);
     return;
   }
 
   std::unique_ptr<base::DictionaryValue> embed_request(
       new base::DictionaryValue());
   embed_request->SetInteger(appview::kGuestInstanceID, guest_instance_id());
   embed_request->SetString(appview::kEmbedderID, owner_host());
-  embed_request->Set(appview::kData, data.release());
+  embed_request->Set(appview::kData, std::move(data));
   AppRuntimeEventRouter::DispatchOnEmbedRequestedEvent(
       browser_context(), std::move(embed_request), extension_host->extension());
 }
 
 void AppViewGuest::SetAppDelegateForTest(AppDelegate* delegate) {
   app_delegate_.reset(delegate);
 }
 
 std::vector<int> AppViewGuest::GetAllRegisteredInstanceIdsForTesting() {
   std::vector<int> instances;
   for (const auto& key_value : pending_response_map.Get()) {
     instances.push_back(key_value.first);
   }
   return instances;
 }
 
 }  // namespace extensions