Remove all remaining traces of MessageLoopProxy.

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 491 matching lines @@
     DVLOG(1) << ("Releasing the block on application suspension since no "
                  "PeerConnections are active anymore.");
     power_save_blocker_.reset();
   } else if (!peer_connection_data_.empty() && !power_save_blocker_) {
     DVLOG(1) << ("Preventing the application from being suspended while one or "
                  "more PeerConnections are active.");
     power_save_blocker_.reset(new device::PowerSaveBlocker(
         device::PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension,
         device::PowerSaveBlocker::kReasonOther,
         "WebRTC has active PeerConnections",
-        BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI),
-        BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE)));
+        BrowserThread::GetTaskRunnerForThread(BrowserThread::UI),
+        BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE)));
   }
 }
 
 void WebRTCInternals::ProcessPendingUpdates() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   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