Add context information to BidiResolver.isolatedRuns()

Add context information to BidiResolver.isolatedRuns()

This patch is a port of http://wkb.ug/149153, which is a port of a fix
for crbug.com/520282.

The WebKit patch has additional changes to carry more information of
isolated runs along with BidiRun. As we find we need to carry more
context with isolated runs in crbug.com/391260, this change is useful.

BUG=520282
Committed: https://crrev.com/f5c7aca8e2c3f4ae965f3c6098e4c6eb00366b30
Cr-Commit-Position: refs/heads/master@{#361258}

[kojii, 2015-11-23 17:43:19]

Description was changed from

==========
WIP: isolated-runs

BUG=
==========

to

==========
Add context information to BidiResolver.isolatedRuns()

This patch is a port of http://wkb.ug/149153. The infinite loop issue
in the bug was originally fixed in crbug.com/520282 for Blink.

The WebKit patch has additional changes to carry more information of
isolated runs along with BidiRun. As we find we need to carry more
context with isolated runs in crbug.com/391260, this change is useful.

BUG=520282
==========

[kojii, 2015-11-23 17:56:47]

Description was changed from

==========
Add context information to BidiResolver.isolatedRuns()

This patch is a port of http://wkb.ug/149153. The infinite loop issue
in the bug was originally fixed in crbug.com/520282 for Blink.

The WebKit patch has additional changes to carry more information of
isolated runs along with BidiRun. As we find we need to carry more
context with isolated runs in crbug.com/391260, this change is useful.

BUG=520282
==========

to

==========
Add context information to BidiResolver.isolatedRuns()

This patch is a port of http://wkb.ug/149153, which is a port of a fix
for crbug.com/520282.

The WebKit patch has additional changes to carry more information of
isolated runs along with BidiRun. As we find we need to carry more
context with isolated runs in crbug.com/391260, this change is useful.

BUG=520282
==========

[kojii, 2015-11-23 18:27:05]

kojii@chromium.org changed reviewers:
+ leviw@chromium.org

[kojii, 2015-11-23 18:27:06]

PTAL.

[kojii, 2015-11-23 18:27:10]

PTAL.

[leviw_travelin_and_unemployed, 2015-11-23 19:44:30]

Seems safer, as well.

LGTM.

[kojii, 2015-11-24 00:53:42]

The CQ bit was checked by kojii@chromium.org

[commit-bot: I haz the power, 2015-11-24 00:55:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1468103002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1468103002/1

[commit-bot: I haz the power, 2015-11-24 03:29:30]

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

[commit-bot: I haz the power, 2015-11-24 03:29:31]

Try jobs failed on following builders:
  linux_chromium_chromeos_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[kojii, 2015-11-24 05:12:26]

The CQ bit was checked by kojii@chromium.org

[commit-bot: I haz the power, 2015-11-24 05:14:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1468103002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1468103002/1

[commit-bot: I haz the power, 2015-11-24 05:21:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-24 05:22:04]

Patchset 1 (id:??) landed as
https://crrev.com/f5c7aca8e2c3f4ae965f3c6098e4c6eb00366b30
Cr-Commit-Position: refs/heads/master@{#361258}