Render inband text tracks in the media pipeline

media/media.gyp

Index: media/media.gyp
diff --git a/media/media.gyp b/media/media.gyp
index 95490d67b4a644957afaeb7af03df3fd25403f5d..3b5d415cc18d8a177cef24dc522017aa824fce5f 100644
--- a/media/media.gyp
+++ b/media/media.gyp
@@ -308,7 +308,13 @@
         'base/stream_parser.h',
         'base/stream_parser_buffer.cc',
         'base/stream_parser_buffer.h',
+        'base/text_cue.cc',
+        'base/text_cue.h',
+        'base/text_renderer.cc',
+        'base/text_renderer.h',
         'base/text_track.h',
+        'base/text_track_config.cc',
+        'base/text_track_config.h',
         'base/user_input_monitor.cc',
         'base/user_input_monitor.h',
         'base/user_input_monitor_linux.cc',
@@ -384,6 +390,7 @@
         'filters/video_renderer_base.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',
@@ -927,6 +934,7 @@
         'base/sinc_resampler_unittest.cc',
         'base/test_data_util.cc',
         'base/test_data_util.h',
+        'base/text_renderer_unittest.cc',
         'base/user_input_monitor_unittest.cc',
         'base/vector_math_testing.h',
         'base/vector_math_unittest.cc',
@@ -1121,6 +1129,8 @@
         'base/fake_audio_render_callback.h',
         'base/fake_audio_renderer_sink.cc',
         'base/fake_audio_renderer_sink.h',
+        'base/fake_text_track_stream.cc',
+        'base/fake_text_track_stream.h',
         'base/gmock_callback_support.h',
         'base/mock_audio_renderer_sink.cc',
         'base/mock_audio_renderer_sink.h',