Refactor VideoTrackRecorder into smaller classes

content/renderer/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/chromecast_build.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//content/common/features.gni")
 import("//media/media_options.gni")
@@ skipping 672 matching lines @@
       "media_capture_from_element/canvas_capture_handler.cc",
       "media_capture_from_element/canvas_capture_handler.h",
       "media_capture_from_element/html_audio_element_capturer_source.cc",
       "media_capture_from_element/html_audio_element_capturer_source.h",
       "media_capture_from_element/html_video_element_capturer_source.cc",
       "media_capture_from_element/html_video_element_capturer_source.h",
       "media_recorder/audio_track_recorder.cc",
       "media_recorder/audio_track_recorder.h",
       "media_recorder/media_recorder_handler.cc",
       "media_recorder/media_recorder_handler.h",
+      "media_recorder/vea_encoder.cc",
+      "media_recorder/vea_encoder.h",
       "media_recorder/video_track_recorder.cc",
       "media_recorder/video_track_recorder.h",
+      "media_recorder/vpx_encoder.cc",
+      "media_recorder/vpx_encoder.h",
       "p2p/empty_network_manager.cc",
       "p2p/empty_network_manager.h",
       "p2p/filtering_network_manager.cc",
       "p2p/filtering_network_manager.h",
       "p2p/host_address_request.cc",
       "p2p/host_address_request.h",
       "p2p/ipc_network_manager.cc",
       "p2p/ipc_network_manager.h",
       "p2p/ipc_socket_factory.cc",
       "p2p/ipc_socket_factory.h",
@@ skipping 41 matching lines @@
       "//third_party/webrtc/modules/audio_processing",
       "//third_party/webrtc/modules/video_coding:webrtc_h264",
       "//third_party/webrtc/p2p:libstunprober",
       "//third_party/webrtc/p2p:rtc_p2p",
       "//third_party/webrtc/pc:rtc_pc",
       "//third_party/webrtc/stats",
       "//third_party/webrtc/system_wrappers",
       "//third_party/webrtc_overrides:init_webrtc",
     ]
     if (rtc_use_h264) {
+      sources += [
+        "media_recorder/h264_encoder.cc",
+        "media_recorder/h264_encoder.h",
+      ]
       deps += [ "//third_party/openh264:encoder" ]
     }
   } else {
     sources += [
       "media/webrtc_logging.h",
       "media/webrtc_logging_noop.cc",
     ]
   }
 
   if (enable_plugins) {
@@ skipping 199 matching lines @@
     # For the defines in mojo_media_config.
     public_configs = [ "//media/mojo/services:mojo_media_config" ]
   }
 
   if (!is_component_build) {
     public_deps = [
       ":renderer",
     ]
   }
 }