Plugin Power Saver: Fix (probably rare) crash in PepperPluginInstanceImpl.

Plugin Power Saver: Fix (probably rare) crash in PepperPluginInstanceImpl.

Wasn't able to repro personally, but based on stack traces, crash reports,
and sadrul@'s diagnosis, this should probably fix the crash in below
bug.

BUG=430228
Committed: https://crrev.com/4d61f56bd68e7efe982276254c7abb48852e65ca
Cr-Commit-Position: refs/heads/master@{#302848}

[tommycli, 2014-11-05 01:04:54]

tommycli@chromium.org changed reviewers:
+ raymes@chromium.org, sadrul@chromium.org

[tommycli, 2014-11-05 01:04:56]

sadrul / raymes:

I wasn't able to repro the crash on either Linux or Windows. It's probably
fairly rare.

But based on the stacktrace and your diagnosis, moving the Power Saver
initialization code from the constructor to Initialize should fix the bug
without breaking power saver.

[raymes, 2014-11-05 05:03:59]

lgtm

[sadrul, 2014-11-05 05:13:17]

I am not familiar with the relevant code to review. But thanks for the speedy
fix!

[sadrul, 2014-11-05 05:13:33]

sadrul@chromium.org changed reviewers:
- sadrul@chromium.org

[tommycli, 2014-11-05 18:43:10]

The CQ bit was checked by tommycli@chromium.org

[commit-bot: I haz the power, 2014-11-05 18:44:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/682813005/1

[commit-bot: I haz the power, 2014-11-05 19:34:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-05 19:34:48]

Patchset 1 (id:??) landed as
https://crrev.com/4d61f56bd68e7efe982276254c7abb48852e65ca
Cr-Commit-Position: refs/heads/master@{#302848}