Update descendent layer positions when a DeprecatedPaintLayer is removed.

Update descendent layer positions when a DeprecatedPaintLayer is removed.

This parallels what we already do when a layer is created.

The bug triggers upon completion of an animation on an element that had no other
reason to have a DeprecatedPaintLayer (inline, statically positioned).

Between http://crrev.com/445263002 and http://crrev.com/786933002 it happened to
work correctly, because we were recomputing the layer position on demand.

BUG=464505
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=193089

[skobes, 2015-04-02 02:33:27]

skobes@chromium.org changed reviewers:
+ dstockwell@chromium.org

[dstockwell, 2015-04-02 03:02:13]

lgtm, thanks!

[skobes, 2015-04-02 03:57:55]

The CQ bit was checked by skobes@chromium.org

[commit-bot: I haz the power, 2015-04-02 03:58:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1058533003/1

[commit-bot: I haz the power, 2015-04-02 04:08:16]

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

[commit-bot: I haz the power, 2015-04-02 04:08:18]

Try jobs failed on following builders:
  blink_presubmit on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/blink_presubmit/builds/3...)

[skobes, 2015-04-02 17:09:39]

The CQ bit was checked by skobes@chromium.org

[skobes, 2015-04-02 17:09:39]

The patchset sent to the CQ was uploaded after l-g-t-m from
dstockwell@chromium.org
Link to the patchset: https://codereview.chromium.org/1058533003/#ps20001
(title: "rebase")

[commit-bot: I haz the power, 2015-04-02 17:10:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1058533003/20001

[commit-bot: I haz the power, 2015-04-02 17:32:51]

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

[commit-bot: I haz the power, 2015-04-02 17:32:52]

Try jobs failed on following builders:
  android_chromium_gn_compile_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/android_chromium_gn_comp...)

[skobes, 2015-04-02 17:35:01]

The CQ bit was checked by skobes@chromium.org

[commit-bot: I haz the power, 2015-04-02 17:35:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1058533003/20001

[commit-bot: I haz the power, 2015-04-02 17:44:33]

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

[commit-bot: I haz the power, 2015-04-02 17:44:34]

Try jobs failed on following builders:
  linux_chromium_gn_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/linux_chromium_gn_rel/bu...)

[skobes, 2015-04-02 17:44:52]

The CQ bit was checked by skobes@chromium.org

[commit-bot: I haz the power, 2015-04-02 17:45:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1058533003/20001

[commit-bot: I haz the power, 2015-04-02 17:59:32]

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

[commit-bot: I haz the power, 2015-04-02 17:59:33]

Try jobs failed on following builders:
  linux_chromium_gn_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/linux_chromium_gn_rel/bu...)

[skobes, 2015-04-02 20:06:11]

The CQ bit was checked by skobes@chromium.org

[commit-bot: I haz the power, 2015-04-02 20:06:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1058533003/20001

[commit-bot: I haz the power, 2015-04-03 05:56:56]

Committed patchset #2 (id:20001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=193089