Remove AudioOutputDeviceEnumerator. Replace usage with MediaDevicesManager.

content/browser/renderer_host/media/media_devices_manager.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_DEVICES_MANAGER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_DEVICES_MANAGER_H_
 
 #include <array>
 #include <vector>
 
@@ skipping 22 matching lines @@
 using MediaDeviceEnumeration =
     std::array<MediaDeviceInfoArray, NUM_MEDIA_DEVICE_TYPES>;
 
 // MediaDevicesManager is responsible for doing media-device enumerations.
 // In addition it implements caching for enumeration results and device
 // monitoring in order to keep caches consistent.
 // All its methods must be called on the IO thread.
 class CONTENT_EXPORT MediaDevicesManager
     : public base::SystemMonitor::DevicesChangedObserver {
  public:
-  // Use MediaDeviceType values to index on this type.
-  using BoolDeviceTypes = std::array<bool, NUM_MEDIA_DEVICE_TYPES>;
+  // Use MediaDeviceType values to index on this type. By default all device
+  // types are false.
+  class BoolDeviceTypes final
+      : public std::array<bool, NUM_MEDIA_DEVICE_TYPES> {
+   public:
+    BoolDeviceTypes() { fill(false); }
+  };
 
   using EnumerationCallback =
       base::Callback<void(const MediaDeviceEnumeration&)>;
 
   MediaDevicesManager(
       media::AudioManager* audio_manager,
       const scoped_refptr<VideoCaptureManager>& video_capture_manager,
       MediaStreamManager* media_stream_manager);
   ~MediaDevicesManager() override;
 
@@ skipping 90 matching lines @@
   bool monitoring_started_;
 
   base::WeakPtrFactory<MediaDevicesManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaDevicesManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_DEVICES_MANAGER_H_