Add TRACE_EVENTX() in WebAudio rendering pipe line

Add TRACE_EVENTX() in WebAudio rendering pipe line

This CL adds multiple trace events (TRACE_EVENTX) in various points in
the rendering to investigate the cause of glitches.

("webaudio", "AudioDestination::Start")
("webaudio", "AudioDestination::Stop")
("webaudio", "AudioDestination::RequestRenderOnWebThread", "frames_to_render", frames_to_render)
("webaudio", "AudioDestination::Render", "callback_buffer_size", number_of_frames)
("webaudio", "AudioDestinationHandler::Render")

BUG=718554
Review-Url: https://codereview.chromium.org/2858223003
Cr-Commit-Position: refs/heads/master@{#469557}
Committed: https://chromium.googlesource.com/chromium/src/+/ab52b62684a4634d2d5e7fdc2a8a137af9aa8647

[hongchan, 2017-05-04 21:00:21]

Description was changed from

==========
Add TRACE_EVENTX() in WebAudio rendering pipe line

This CL adds multiple trace events (TRACE_EVENTX) in various points in
the rendering to investigate the cause of glitches.

BUG=718554
==========

to

==========
Add TRACE_EVENTX() in WebAudio rendering pipe line

This CL adds multiple trace events (TRACE_EVENTX) in various points in
the rendering to investigate the cause of glitches.

("webaudio", "AudioDestination::Start")
("webaudio", "AudioDestination::Stop")
("webaudio", "AudioDestination::RequestRenderOnWebThread", "frames_to_render",
frames_to_render)
("webaudio", "AudioDestination::Render", "callback_buffer_size",
number_of_frames)
("webaudio", "AudioDestinationHandler::Render")

BUG=718554
==========

[hongchan, 2017-05-04 22:12:01]

hongchan@chromium.org changed reviewers:
+ rtoy@chromium.org

[hongchan, 2017-05-04 22:12:02]

PTAL.

[Raymond Toy, 2017-05-04 23:12:11]

lgtm

[hongchan, 2017-05-04 23:16:20]

The CQ bit was checked by hongchan@chromium.org

[commit-bot: I haz the power, 2017-05-04 23:17:15]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-05-05 01:06:17]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1493939780469220,
"parent_rev": "c5b0211231afcb73898b6ecfa8c7c3e59702f84c", "commit_rev":
"ab52b62684a4634d2d5e7fdc2a8a137af9aa8647"}

[commit-bot: I haz the power, 2017-05-05 01:06:53]

Description was changed from

==========
Add TRACE_EVENTX() in WebAudio rendering pipe line

This CL adds multiple trace events (TRACE_EVENTX) in various points in
the rendering to investigate the cause of glitches.

("webaudio", "AudioDestination::Start")
("webaudio", "AudioDestination::Stop")
("webaudio", "AudioDestination::RequestRenderOnWebThread", "frames_to_render",
frames_to_render)
("webaudio", "AudioDestination::Render", "callback_buffer_size",
number_of_frames)
("webaudio", "AudioDestinationHandler::Render")

BUG=718554
==========

to

==========
Add TRACE_EVENTX() in WebAudio rendering pipe line

This CL adds multiple trace events (TRACE_EVENTX) in various points in
the rendering to investigate the cause of glitches.

("webaudio", "AudioDestination::Start")
("webaudio", "AudioDestination::Stop")
("webaudio", "AudioDestination::RequestRenderOnWebThread", "frames_to_render",
frames_to_render)
("webaudio", "AudioDestination::Render", "callback_buffer_size",
number_of_frames)
("webaudio", "AudioDestinationHandler::Render")

BUG=718554

Review-Url: https://codereview.chromium.org/2858223003
Cr-Commit-Position: refs/heads/master@{#469557}
Committed:
https://chromium.googlesource.com/chromium/src/+/ab52b62684a4634d2d5e7fdc2a8a...
==========

[commit-bot: I haz the power, 2017-05-05 01:06:55]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/ab52b62684a4634d2d5e7fdc2a8a...