Only access a plugin's scriptable object, and not also its prototype chain

Only access a plugin's scriptable object, and not also its prototype chain

BUG=chromium:619166
R=haraken@chromium.org

Committed: https://crrev.com/dbbdebecc3416092a833f8ac14a849500be8a2eb
Cr-Commit-Position: refs/heads/master@{#401579}

[jochen (gone - plz use gerrit), 2016-06-22 09:43:54]

depends on https://codereview.chromium.org/2085223002/

[haraken, 2016-06-22 10:57:26]

LGTM

[jochen (gone - plz use gerrit), 2016-06-22 14:50:50]

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

[commit-bot: I haz the power, 2016-06-22 14:51:00]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2084183004/1

[commit-bot: I haz the power, 2016-06-22 15:55:53]

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

[commit-bot: I haz the power, 2016-06-22 15:55:54]

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

[jochen (gone - plz use gerrit), 2016-06-23 08:53:28]

The CQ bit was checked by jochen@chromium.org

[jochen (gone - plz use gerrit), 2016-06-23 08:53:29]

The patchset sent to the CQ was uploaded after l-g-t-m from haraken@chromium.org
Link to the patchset: https://codereview.chromium.org/2084183004/#ps20001
(title: "updates")

[commit-bot: I haz the power, 2016-06-23 08:53:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2084183004/20001

[commit-bot: I haz the power, 2016-06-23 11:21:31]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-23 11:23:12]

Description was changed from

==========
Only access a plugin's scriptable object, and not also its prototype chain

BUG=chromium:619166
R=haraken@chromium.org
==========

to

==========
Only access a plugin's scriptable object, and not also its prototype chain

BUG=chromium:619166
R=haraken@chromium.org

Committed: https://crrev.com/dbbdebecc3416092a833f8ac14a849500be8a2eb
Cr-Commit-Position: refs/heads/master@{#401579}
==========

[commit-bot: I haz the power, 2016-06-23 11:23:13]

Patchset 2 (id:??) landed as
https://crrev.com/dbbdebecc3416092a833f8ac14a849500be8a2eb
Cr-Commit-Position: refs/heads/master@{#401579}