cc: Remove DCHECK for invalid image

cc: Remove DCHECK for invalid image

This appears to happen sometimes due to render process shutdown racing
with drawing a frame using software resources from that renderer.
Previously this wouldn't DCHECK at all and would just early out.

BUG=626203, chromedriver:1418
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Committed: https://crrev.com/011f68cd2fa0d9fff7fd9808043d6a7fae6e478c
Cr-Commit-Position: refs/heads/master@{#404251}

[enne (OOO), 2016-07-07 18:31:11]

Description was changed from

==========
cc: Turn image not valid CHECK back to DCHECK

This appears to happen sometimes due to render process shutdown racing
with drawing a frame using software resources from that renderer.  Turn
the NOTREACHED release CHECK back into a DCHECK for now while this is
investigated further.

BUG=626203,chromedriver:1418
==========

to

==========
cc: Turn image not valid CHECK back to DCHECK

This appears to happen sometimes due to render process shutdown racing
with drawing a frame using software resources from that renderer.  Turn
the NOTREACHED release CHECK back into a DCHECK for now while this is
investigated further.

BUG=626203,chromedriver:1418
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

[enne (OOO), 2016-07-07 18:32:56]

enne@chromium.org changed reviewers:
+ ericrk@chromium.org

[ericrk, 2016-07-07 18:52:39]

lgtm

[ericrk, 2016-07-07 19:03:40]

lgtm again :D

[enne (OOO), 2016-07-07 19:04:01]

Description was changed from

==========
cc: Turn image not valid CHECK back to DCHECK

This appears to happen sometimes due to render process shutdown racing
with drawing a frame using software resources from that renderer.  Turn
the NOTREACHED release CHECK back into a DCHECK for now while this is
investigated further.

BUG=626203,chromedriver:1418
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

to

==========
cc: Remove DCHECK for invalid image

This appears to happen sometimes due to render process shutdown racing
with drawing a frame using software resources from that renderer.
Previously this wouldn't DCHECK at all and would just early out.

BUG=626203,chromedriver:1418
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

[enne (OOO), 2016-07-07 19:04:06]

The CQ bit was checked by enne@chromium.org

[commit-bot: I haz the power, 2016-07-07 19:04:46]

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, 2016-07-07 22:16:31]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-07-07 22:16:35]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-07 22:19:29]

Description was changed from

==========
cc: Remove DCHECK for invalid image

This appears to happen sometimes due to render process shutdown racing
with drawing a frame using software resources from that renderer.
Previously this wouldn't DCHECK at all and would just early out.

BUG=626203,chromedriver:1418
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
==========

to

==========
cc: Remove DCHECK for invalid image

This appears to happen sometimes due to render process shutdown racing
with drawing a frame using software resources from that renderer.
Previously this wouldn't DCHECK at all and would just early out.

BUG=626203,chromedriver:1418
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Committed: https://crrev.com/011f68cd2fa0d9fff7fd9808043d6a7fae6e478c
Cr-Commit-Position: refs/heads/master@{#404251}
==========

[commit-bot: I haz the power, 2016-07-07 22:19:30]

Patchset 2 (id:??) landed as
https://crrev.com/011f68cd2fa0d9fff7fd9808043d6a7fae6e478c
Cr-Commit-Position: refs/heads/master@{#404251}