Revert "Fix 2D canvas content loss while page is hidden".

Revert "Fix 2D canvas content loss while page is hidden".

This reverts commit 526a7f4c610f0f4a0859c199e8cd4fcedcb8234d.

This is a speculative revert to fix a recent spike in renderer crashes.

BUG=578963, 580949
TBR=ajuma@chromium.org

Committed: https://crrev.com/0554035089ba7519d59f4b8507d47af4a851f39f
Cr-Commit-Position: refs/heads/master@{#371554}

[Stephen White, 2016-01-26 15:38:29]

The CQ bit was checked by senorblanco@chromium.org

[commit-bot: I haz the power, 2016-01-26 15:38:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1637893002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1637893002/1

[commit-bot: I haz the power, 2016-01-26 17:48:37]

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

[commit-bot: I haz the power, 2016-01-26 17:48:37]

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_...)

[Stephen White, 2016-01-26 17:56:21]

The CQ bit was checked by senorblanco@chromium.org

[commit-bot: I haz the power, 2016-01-26 17:56:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1637893002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1637893002/1

[commit-bot: I haz the power, 2016-01-26 19:17:59]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-26 19:19:13]

Description was changed from

==========
Revert "Fix 2D canvas content loss while page is hidden".

This reverts commit 526a7f4c610f0f4a0859c199e8cd4fcedcb8234d.

This is a speculative revert to fix a recent spike in renderer crashes.

BUG=578963,580949
TBR=ajuma@chromium.org
==========

to

==========
Revert "Fix 2D canvas content loss while page is hidden".

This reverts commit 526a7f4c610f0f4a0859c199e8cd4fcedcb8234d.

This is a speculative revert to fix a recent spike in renderer crashes.

BUG=578963,580949
TBR=ajuma@chromium.org

Committed: https://crrev.com/0554035089ba7519d59f4b8507d47af4a851f39f
Cr-Commit-Position: refs/heads/master@{#371554}
==========

[commit-bot: I haz the power, 2016-01-26 19:19:14]

Patchset 1 (id:??) landed as
https://crrev.com/0554035089ba7519d59f4b8507d47af4a851f39f
Cr-Commit-Position: refs/heads/master@{#371554}