Web MIDI: restore sysex receiving buffer synchronously

Web MIDI: restore sysex receiving buffer synchronously

The new backend restores sysex receiving buffer asynchronously,
but it turned out that this way causes a receiving data loss on
receiving continuous sysex messages.

The original backend did it synchronously and didn't have such
problem. So let me fix the new backend to take the same approach.

BUG=730647
Review-Url: https://codereview.chromium.org/2926143003
Cr-Commit-Position: refs/heads/master@{#477807}
Committed: https://chromium.googlesource.com/chromium/src/+/1814e6af281cd1f00ddf0705c01e2484708b0e4d

[Takashi Toyoshima, 2017-06-07 16:24:29]

Description was changed from

==========
Web MIDI: restore sysex receiving buffer synchronously

The new backend restores sysex receiving buffer asynchronously,
but it turned out that this way causes a receiving data loss on
receiving continuous sysex messages.

The original backend did it synchronously and didn't have such
problem. So let me fix the new backend to take the same approach.

BUG=730647
==========

to

==========
Web MIDI: restore sysex receiving buffer synchronously

The new backend restores sysex receiving buffer asynchronously,
but it turned out that this way causes a receiving data loss on
receiving continuous sysex messages.

The original backend did it synchronously and didn't have such
problem. So let me fix the new backend to take the same approach.

BUG=730647
==========

[Takashi Toyoshima, 2017-06-07 16:24:29]

toyoshim@chromium.org changed reviewers:
+ yhirano@chromium.org, yukawa@chromium.org

[Takashi Toyoshima, 2017-06-07 16:24:37]

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

[commit-bot: I haz the power, 2017-06-07 16:25:06]

Dry run: CQ is trying da patch.

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

[Takashi Toyoshima, 2017-06-07 16:25:38]

Can you review this small code change?
This change needs to be merged to release branches quickly.

[yukawa, 2017-06-07 16:28:43]

lgtm

[Takashi Toyoshima, 2017-06-07 16:40:44]

Thank you for a quick review!

[commit-bot: I haz the power, 2017-06-07 19:20:20]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-06-07 19:20:21]

Dry run: Try jobs failed on following builders:
  win_chromium_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[Takashi Toyoshima, 2017-06-07 19:45:14]

The CQ bit was checked by toyoshim@chromium.org

[commit-bot: I haz the power, 2017-06-07 19:45:38]

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, 2017-06-07 23:45:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1496864714670720, "parent_rev":
"396c6b7534905bca2d5d5a37c27d356c6ece01ed", "commit_rev":
"2a0536ee7a7432e7f59ad024454c74abdbf9cc3c"}

[commit-bot: I haz the power, 2017-06-07 23:46:05]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1496864714670720, "parent_rev":
"2946ce1796dab9db6e624d26494964a51d5f377d", "commit_rev":
"1814e6af281cd1f00ddf0705c01e2484708b0e4d"}

[commit-bot: I haz the power, 2017-06-07 23:46:13]

Description was changed from

==========
Web MIDI: restore sysex receiving buffer synchronously

The new backend restores sysex receiving buffer asynchronously,
but it turned out that this way causes a receiving data loss on
receiving continuous sysex messages.

The original backend did it synchronously and didn't have such
problem. So let me fix the new backend to take the same approach.

BUG=730647
==========

to

==========
Web MIDI: restore sysex receiving buffer synchronously

The new backend restores sysex receiving buffer asynchronously,
but it turned out that this way causes a receiving data loss on
receiving continuous sysex messages.

The original backend did it synchronously and didn't have such
problem. So let me fix the new backend to take the same approach.

BUG=730647

Review-Url: https://codereview.chromium.org/2926143003
Cr-Commit-Position: refs/heads/master@{#477807}
Committed:
https://chromium.googlesource.com/chromium/src/+/1814e6af281cd1f00ddf0705c01e...
==========

[commit-bot: I haz the power, 2017-06-07 23:46:15]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/1814e6af281cd1f00ddf0705c01e...