MSE: Provide link in media-internals to known bug 229412 until it is fixed

MSE: Provide link in media-internals to known bug 229412 until it is fixed

Until bug 229412 is fixed, this change at least provides a better
indication to developers when the bug is hit.

BUG=229412
R=ddorwin@chromium.org
TEST=manual

Committed: https://crrev.com/7a7df715279034ae4e8ceffe9e1f74280212c031
Cr-Commit-Position: refs/heads/master@{#339569}

[wolenetz, 2015-07-20 21:32:51]

Please take a look.
To verify manually, I used shaka-player-demo.appspot.com  with the mpd from the
first repro link for bug 452212
(https://dl.dropboxusercontent.com/u/49248679/Samples_Dash_1/sample.mpd), and
observed the following log entry in chrome://media-internals at currentTime
~2:26:

00:02:27 388	info	Audio codec: mp4a.40.2
00:02:27 856	error	Media segment did not begin with key frame. Current lack of
support for this is a known issue. Please see https://crbug.com/229412.

[wolenetz, 2015-07-20 21:32:58]

The CQ bit was checked by wolenetz@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-07-20 21:34:46]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1248453003/1

[ddorwin, 2015-07-20 21:37:38]

Thanks! LGTM with suggestion.

https://codereview.chromium.org/1248453003/diff/1/media/filters/source_buffer...
File media/filters/source_buffer_stream.cc (right):

https://codereview.chromium.org/1248453003/diff/1/media/filters/source_buffer...
media/filters/source_buffer_stream.cc:243: "frame. Current lack of support for
this "
nit: The following makes the second sentence more positive and helpful:
"Support for such segments will be available in a future version..."

[wolenetz, 2015-07-20 21:56:19]

Thanks for suggestion and review.

https://codereview.chromium.org/1248453003/diff/1/media/filters/source_buffer...
File media/filters/source_buffer_stream.cc (right):

https://codereview.chromium.org/1248453003/diff/1/media/filters/source_buffer...
media/filters/source_buffer_stream.cc:243: "frame. Current lack of support for
this "
On 2015/07/20 21:37:38, ddorwin wrote:
> nit: The following makes the second sentence more positive and helpful:
> "Support for such segments will be available in a future version..."

Done.

[wolenetz, 2015-07-20 21:56:26]

The CQ bit was checked by wolenetz@chromium.org

[wolenetz, 2015-07-20 21:56:26]

The patchset sent to the CQ was uploaded after l-g-t-m from ddorwin@chromium.org
Link to the patchset: https://codereview.chromium.org/1248453003/#ps20001
(title: "Fix nit (++positivity_and_helpfulness_of_message)")

[commit-bot: I haz the power, 2015-07-20 21:57:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1248453003/20001

[wolenetz, 2015-07-20 21:58:16]

On 2015/07/20 21:56:19, wolenetz wrote:
> Thanks for suggestion and review.
> 
>
https://codereview.chromium.org/1248453003/diff/1/media/filters/source_buffer...
> File media/filters/source_buffer_stream.cc (right):
> 
>
https://codereview.chromium.org/1248453003/diff/1/media/filters/source_buffer...
> media/filters/source_buffer_stream.cc:243: "frame. Current lack of support for
> this "
> On 2015/07/20 21:37:38, ddorwin wrote:
> > nit: The following makes the second sentence more positive and helpful:
> > "Support for such segments will be available in a future version..."
> 
> Done.

Confirmed manually the new message (same repro as in comment #1):
00:00:23 41	error	Media segment did not begin with key frame. Support for such
segments will be available in a future version. Please see
https://crbug.com/229412.

[commit-bot: I haz the power, 2015-07-21 00:04:10]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-07-21 00:05:13]

Patchset 2 (id:??) landed as
https://crrev.com/7a7df715279034ae4e8ceffe9e1f74280212c031
Cr-Commit-Position: refs/heads/master@{#339569}