cleanup: Replace "video" trace category with "media"

There's only a few instances of "video" as TRACE_EVENT category [1],
so it doesn't have a strong reason to exist. This CL folds them back
into "media"

sed -i -e 's/"video"/"media"/'  `grep -rn 'TRACE_EVENT.("video"' media/ content/ | cut -d: -f1 | uniq`

[1] https://cs.chromium.org/search/?q=TRACE_EVENT.%5C(%22video%22&sq=package:chromium&type=cs

Change-Id: Id2a164986d0cbabd465ba69b59b365668ac80777
Reviewed-on: https://chromium-review.googlesource.com/922401Reviewed-by: Yuri Wiitala <miu@chromium.org>
Commit-Queue: Miguel Casas <mcasas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537553}

content/renderer/media/pepper/pepper_to_video_track_adapter.cc

@@ -126,7 +126,7 @@ void PpFrameWriter::StopSourceImpl() {
 void PpFrameWriter::PutFrame(PPB_ImageData_Impl* image_data,
                              int64_t time_stamp_ns) {
   DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
-  TRACE_EVENT0("video", "PpFrameWriter::PutFrame");
+  TRACE_EVENT0("media", "PpFrameWriter::PutFrame");
   DVLOG(3) << "PpFrameWriter::PutFrame()";
 
   if (!image_data) {

content/renderer/media/pepper/video_track_to_pepper_adapter.cc

@@ -50,7 +50,7 @@ class PpFrameReceiver : public MediaStreamVideoSink {
 
   void OnVideoFrame(const scoped_refptr<media::VideoFrame>& frame,
                     base::TimeTicks estimated_capture_time) {
-    TRACE_EVENT0("video", "PpFrameReceiver::OnVideoFrame");
+    TRACE_EVENT0("media", "PpFrameReceiver::OnVideoFrame");
     if (reader_)
       reader_->GotFrame(frame);
   }

content/renderer/media/stream/video_track_adapter.cc

@@ -597,7 +597,7 @@ void VideoTrackAdapter::DeliverFrameOnIO(
     const scoped_refptr<media::VideoFrame>& frame,
     base::TimeTicks estimated_capture_time) {
   DCHECK(io_task_runner_->BelongsToCurrentThread());
-  TRACE_EVENT0("video", "VideoTrackAdapter::DeliverFrameOnIO");
+  TRACE_EVENT0("media", "VideoTrackAdapter::DeliverFrameOnIO");
   ++frame_counter_;
 
   bool is_device_rotated = false;

content/renderer/media/webrtc/webrtc_video_capturer_adapter.cc

@@ -43,7 +43,7 @@ WebRtcVideoCapturerAdapter::~WebRtcVideoCapturerAdapter() {
 void WebRtcVideoCapturerAdapter::OnFrameCaptured(
     const scoped_refptr<media::VideoFrame>& input_frame) {
   DCHECK(thread_checker_.CalledOnValidThread());
-  TRACE_EVENT0("video", "WebRtcVideoCapturerAdapter::OnFrameCaptured");
+  TRACE_EVENT0("media", "WebRtcVideoCapturerAdapter::OnFrameCaptured");
   if (!(input_frame->IsMappable() &&
         (input_frame->format() == media::PIXEL_FORMAT_I420 ||
          input_frame->format() == media::PIXEL_FORMAT_I420A)) &&

content/renderer/media_capture_from_element/html_video_element_capturer_source.cc

@@ -118,7 +118,7 @@ void HtmlVideoElementCapturerSource::StopCapture() {
 
 void HtmlVideoElementCapturerSource::sendNewFrame() {
   DVLOG(3) << __func__;
-  TRACE_EVENT0("video", "HtmlVideoElementCapturerSource::sendNewFrame");
+  TRACE_EVENT0("media", "HtmlVideoElementCapturerSource::sendNewFrame");
   DCHECK(thread_checker_.CalledOnValidThread());
 
   if (!web_media_player_ || new_frame_callback_.is_null())

content/renderer/media_recorder/h264_encoder.cc

@@ -54,7 +54,7 @@ H264Encoder::~H264Encoder() {
 void H264Encoder::EncodeOnEncodingTaskRunner(
     scoped_refptr<VideoFrame> frame,
     base::TimeTicks capture_timestamp) {
-  TRACE_EVENT0("video", "H264Encoder::EncodeOnEncodingTaskRunner");
+  TRACE_EVENT0("media", "H264Encoder::EncodeOnEncodingTaskRunner");
   DCHECK(encoding_task_runner_->BelongsToCurrentThread());
 
   const gfx::Size frame_size = frame->visible_rect().size();
@@ -112,7 +112,7 @@ void H264Encoder::EncodeOnEncodingTaskRunner(
 }
 
 void H264Encoder::ConfigureEncoderOnEncodingTaskRunner(const gfx::Size& size) {
-  TRACE_EVENT0("video", "H264Encoder::ConfigureEncoderOnEncodingTaskRunner");
+  TRACE_EVENT0("media", "H264Encoder::ConfigureEncoderOnEncodingTaskRunner");
   DCHECK(encoding_task_runner_->BelongsToCurrentThread());
   ISVCEncoder* temp_encoder = nullptr;
   if (WelsCreateSVCEncoder(&temp_encoder) != 0) {

content/renderer/media_recorder/vpx_encoder.cc

@@ -69,7 +69,7 @@ bool VpxEncoder::CanEncodeAlphaChannel() {
 
 void VpxEncoder::EncodeOnEncodingTaskRunner(scoped_refptr<VideoFrame> frame,
                                             base::TimeTicks capture_timestamp) {
-  TRACE_EVENT0("video", "VpxEncoder::EncodeOnEncodingTaskRunner");
+  TRACE_EVENT0("media", "VpxEncoder::EncodeOnEncodingTaskRunner");
   DCHECK(encoding_task_runner_->BelongsToCurrentThread());
 
   const gfx::Size frame_size = frame->visible_rect().size();

media/capture/video/video_capture_device_client.cc

@@ -104,7 +104,7 @@ void VideoCaptureDeviceClient::OnIncomingCapturedData(
     base::TimeTicks reference_time,
     base::TimeDelta timestamp,
     int frame_feedback_id) {
-  TRACE_EVENT0("video", "VideoCaptureDeviceClient::OnIncomingCapturedData");
+  TRACE_EVENT0("media", "VideoCaptureDeviceClient::OnIncomingCapturedData");
   DCHECK_EQ(VideoPixelStorage::CPU, format.pixel_storage);
 
   if (last_captured_pixel_format_ != format.pixel_format) {