Reset animation player map on disconnecting Inspector frontend.

Reset animation player map on disconnecting Inspector frontend.

Clear out the node ID to AnimationPlayer map on disconnect to avoid
references to elements (and their documents) from lingering longer than
necessary.

R=haraken,aandrey
BUG=428685
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=184743

[sof, 2014-10-31 11:05:48]

sigbjornf@opera.com changed reviewers:
+ aandrey@chromium.org, oilpan-reviews@chromium.org, yurys@chromium.org

[sof, 2014-10-31 11:05:48]

Please take a look.

[haraken, 2014-10-31 11:08:54]

LGTM

[aandrey, 2014-10-31 11:39:00]

lgtm

[sof, 2014-10-31 12:34:59]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2014-10-31 12:35:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/690603003/1

[commit-bot: I haz the power, 2014-10-31 14:25:27]

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

[commit-bot: I haz the power, 2014-10-31 14:25:28]

Try jobs failed on following builders:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/34593)

[sof, 2014-10-31 14:26:16]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2014-10-31 14:26:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/690603003/1

[commit-bot: I haz the power, 2014-10-31 16:16:36]

Committed patchset #1 (id:1) as 184743