Hold a handle to the v8 context in PepperTryCatchVar.

Hold a handle to the v8 context in PepperTryCatchVar.

It is safer to hold a handle to v8 context in PepperTryCatchVar than to try
retrieving it again on destruction from the frame (through the plugin instance) which has
a chance of being torn down.

BUG=411445
Committed: https://crrev.com/85d12eb757f3d699ee20701905c0bd3a800255f7
Cr-Commit-Position: refs/heads/master@{#294288}

[raymes, 2014-09-10 23:53:17]

raymes@chromium.org changed reviewers:
+ jochen@chromium.org, sammc@chromium.org

[jochen (gone - plz use gerrit), 2014-09-11 00:00:09]

lgtm.

[raymes, 2014-09-11 00:01:00]

The CQ bit was checked by raymes@chromium.org

[commit-bot: I haz the power, 2014-09-11 00:04:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/562763005/1

[commit-bot: I haz the power, 2014-09-11 01:47:21]

Committed patchset #1 (id:1) as b80daffbb4842cd11a6c0dc222657f9271cafea7

[commit-bot: I haz the power, 2014-09-11 03:09:01]

Patchset 1 (id:??) landed as
https://crrev.com/85d12eb757f3d699ee20701905c0bd3a800255f7
Cr-Commit-Position: refs/heads/master@{#294288}