Extract VideoCaptureDeviceFactory out of VideoCaptureDevice and use for File and FakeVCD.

media/media.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     # Option e.g. for Linux distributions to link pulseaudio directly
@@ skipping 442 matching lines @@
         'midi/usb_midi_input_stream.h',
         'midi/usb_midi_jack.h',
         'midi/usb_midi_output_stream.cc',
         'midi/usb_midi_output_stream.h',
         'video/capture/android/video_capture_device_android.cc',
         'video/capture/android/video_capture_device_android.h',
         'video/capture/android/video_capture_device_factory_android.cc',
         'video/capture/android/video_capture_device_factory_android.h',
         'video/capture/fake_video_capture_device.cc',
         'video/capture/fake_video_capture_device.h',
+        'video/capture/fake_video_capture_device_factory.h',
+        'video/capture/fake_video_capture_device_factory.cc',
         'video/capture/file_video_capture_device.cc',
         'video/capture/file_video_capture_device.h',
+        'video/capture/file_video_capture_device_factory.h',
+        'video/capture/file_video_capture_device_factory.cc',
         'video/capture/linux/video_capture_device_linux.cc',
         'video/capture/linux/video_capture_device_linux.h',
         'video/capture/mac/avfoundation_glue.h',
         'video/capture/mac/avfoundation_glue.mm',
         'video/capture/mac/coremedia_glue.h',
         'video/capture/mac/coremedia_glue.mm',
         'video/capture/mac/platform_video_capturing_mac.h',
         'video/capture/mac/video_capture_device_avfoundation_mac.h',
         'video/capture/mac/video_capture_device_avfoundation_mac.mm',
         'video/capture/mac/video_capture_device_mac.h',
         'video/capture/mac/video_capture_device_mac.mm',
         'video/capture/mac/video_capture_device_qtkit_mac.h',
         'video/capture/mac/video_capture_device_qtkit_mac.mm',
         'video/capture/video_capture.h',
         'video/capture/video_capture_device.cc',
         'video/capture/video_capture_device.h',
+        'video/capture/video_capture_device_factory.cc',
+        'video/capture/video_capture_device_factory.h',
         'video/capture/video_capture_proxy.cc',
         'video/capture/video_capture_proxy.h',
         'video/capture/video_capture_types.cc',
         'video/capture/video_capture_types.h',
         'video/capture/win/capability_list_win.cc',
         'video/capture/win/capability_list_win.h',
         'video/capture/win/filter_base_win.cc',
         'video/capture/win/filter_base_win.h',
         'video/capture/win/pin_base_win.cc',
         'video/capture/win/pin_base_win.h',
@@ skipping 1190 matching lines @@
                   ],
                 }],
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }