Fix auto raw pointer deduction on linux

content/browser/renderer_host/media/media_devices_manager.cc

 // Copyright 2016 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/renderer_host/media/media_devices_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 502 matching lines @@
 
   media_stream_manager_->NotifyDevicesChanged(type, new_snapshot);
 }
 
 void MediaDevicesManager::NotifyDeviceChangeSubscribers(
     MediaDeviceType type,
     const MediaDeviceInfoArray& snapshot) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK(IsValidMediaDeviceType(type));
 
-  for (const auto& subscriber : device_change_subscribers_[type]) {
+  for (auto* subscriber : device_change_subscribers_[type]) {
     subscriber->OnDevicesChanged(type, snapshot);
   }
 }
 
 }  // namespace content