Plumb callbacks from mojo media service to client.

media/mojo/common/media_type_converters.cc

Index: media/mojo/common/media_type_converters.cc
diff --git a/media/mojo/common/media_type_converters.cc b/media/mojo/common/media_type_converters.cc
index 17e3a8fd04227929a4599524227d1d4a6b7cbb5c..16924b670b0ba1b31063fd5d1106cdc91c7e38ad 100644
--- a/media/mojo/common/media_type_converters.cc
+++ b/media/mojo/common/media_type_converters.cc
@@ -21,6 +21,7 @@
 #include "media/base/demuxer_stream.h"
 #include "media/base/encryption_scheme.h"
 #include "media/base/media_keys.h"
+#include "media/base/pipeline_status.h"
 #include "media/base/video_decoder_config.h"
 #include "media/base/video_frame.h"
 #include "media/mojo/common/mojo_shared_buffer_video_frame.h"
@@ -727,4 +728,33 @@ TypeConverter<scoped_refptr<media::VideoFrame>, media::mojom::VideoFramePtr>::
       base::TimeDelta::FromMicroseconds(input->timestamp_usec));
 }
 
+// static
+media::mojom::PipelineStatisticsPtr

[alokp, 2016/06/27 21:50:48]

Is it possible to use type mapping here?
https://www.chromium.org/developers/design-documents/mojo/type-mapping

[alokp, 2016/06/27 22:09:57]

or may be just [Native]

[slan, 2016/06/27 22:22:55]

After reviewing this feature, this approach seems far simpler. It is possible
that I do not understand the feature though. Will leave it as-is, unless
somebody have strong opinions.

+TypeConverter<media::mojom::PipelineStatisticsPtr, media::PipelineStatistics>::
+    Convert(const media::PipelineStatistics& input) {
+  media::mojom::PipelineStatisticsPtr result(
+      media::mojom::PipelineStatistics::New());
+  result->audio_bytes_decoded = input.audio_bytes_decoded;
+  result->video_bytes_decoded = input.video_bytes_decoded;
+  result->video_frames_decoded = input.video_frames_decoded;
+  result->video_frames_dropped = input.video_frames_dropped;
+  result->audio_memory_usage = input.audio_memory_usage;
+  result->video_memory_usage = input.video_memory_usage;
+  return result;
+}
+
+// static
+media::PipelineStatistics
+TypeConverter<media::PipelineStatistics, media::mojom::PipelineStatisticsPtr>::
+    Convert(const media::mojom::PipelineStatisticsPtr& input) {
+  media::PipelineStatistics result;
+  result.audio_bytes_decoded = input->audio_bytes_decoded;
+  result.video_bytes_decoded = input->video_bytes_decoded;
+  result.video_frames_decoded = input->video_frames_decoded;
+  result.video_frames_dropped = input->video_frames_dropped;
+  result.audio_memory_usage = input->audio_memory_usage;
+  result.video_memory_usage = input->video_memory_usage;
+  return result;
+}
+
 }  // namespace mojo