Introduce VideoFrameScheduler{Impl}.

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 395 matching lines @@
         'filters/legacy_frame_processor.cc',
         'filters/legacy_frame_processor.h',
         'filters/opus_audio_decoder.cc',
         'filters/opus_audio_decoder.h',
         'filters/skcanvas_video_renderer.cc',
         'filters/skcanvas_video_renderer.h',
         'filters/source_buffer_stream.cc',
         'filters/source_buffer_stream.h',
         'filters/stream_parser_factory.cc',
         'filters/stream_parser_factory.h',
+        'filters/video_frame_scheduler.h',
+        'filters/video_frame_scheduler_impl.cc',
+        'filters/video_frame_scheduler_impl.h',
+        'filters/video_frame_scheduler_proxy.cc',
+        'filters/video_frame_scheduler_proxy.h',
         'filters/video_renderer_impl.cc',
         'filters/video_renderer_impl.h',
         'filters/vpx_video_decoder.cc',
         'filters/vpx_video_decoder.h',
         'filters/webvtt_util.h',
         'filters/wsola_internals.cc',
         'filters/wsola_internals.h',
         'midi/midi_manager.cc',
         'midi/midi_manager.h',
         'midi/midi_manager_alsa.cc',
@@ skipping 606 matching lines @@
         'filters/ffmpeg_video_decoder_unittest.cc',
         'filters/file_data_source_unittest.cc',
         'filters/h264_bit_reader_unittest.cc',
         'filters/h264_parser_unittest.cc',
         'filters/h264_to_annex_b_bitstream_converter_unittest.cc',
         'filters/pipeline_integration_test.cc',
         'filters/pipeline_integration_test_base.cc',
         'filters/skcanvas_video_renderer_unittest.cc',
         'filters/source_buffer_stream_unittest.cc',
         'filters/video_decoder_selector_unittest.cc',
+        'filters/video_frame_scheduler_impl_unittest.cc',
         'filters/video_frame_stream_unittest.cc',
         'filters/video_renderer_impl_unittest.cc',
         'midi/midi_manager_usb_unittest.cc',
         'midi/midi_message_queue_unittest.cc',
         'midi/midi_message_util_unittest.cc',
         'midi/usb_midi_descriptor_parser_unittest.cc',
         'midi/usb_midi_input_stream_unittest.cc',
         'midi/usb_midi_output_stream_unittest.cc',
         'video/capture/video_capture_device_unittest.cc',
         'formats/common/offset_byte_queue_unittest.cc',
@@ skipping 649 matching lines @@
                   ],
                 }],
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }