Use std::unique_ptr for base::DictionaryValue and base::ListValue's internal store.

content/browser/media/webrtc/webrtc_internals.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/browser/media/webrtc/webrtc_internals.h"
 
 #include <stddef.h>
 
 #include "base/strings/string_number_conversions.h"
 #include "build/build_config.h"
@@ skipping 245 matching lines @@
   // webrtc-internals page is going away.
   if (audio_debug_recordings_ && !observers_.might_have_observers())
     DisableAudioDebugRecordings();
 }
 
 void WebRTCInternals::UpdateObserver(WebRTCInternalsUIObserver* observer) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   if (peer_connection_data_.GetSize() > 0)
     observer->OnUpdate("updateAllPeerConnections", &peer_connection_data_);
 
-  for (base::ListValue::iterator it = get_user_media_requests_.begin();
-       it != get_user_media_requests_.end();
-       ++it) {
-    observer->OnUpdate("addGetUserMedia", *it);
+  for (const auto& request : get_user_media_requests_) {
+    observer->OnUpdate("addGetUserMedia", request.get());
   }
 }
 
 void WebRTCInternals::EnableAudioDebugRecordings(
     content::WebContents* web_contents) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 #if defined(ENABLE_WEBRTC)
 #if defined(OS_ANDROID)
   EnableAudioDebugRecordingsOnAllRenderProcessHosts();
 #else
@@ skipping 233 matching lines @@
   while (!pending_updates_.empty()) {
     const auto& update = pending_updates_.front();
     FOR_EACH_OBSERVER(WebRTCInternalsUIObserver,
                       observers_,
                       OnUpdate(update.command(), update.value()));
     pending_updates_.pop();
   }
 }
 
 }  // namespace content