Properly simulate self-closing tags when in "foreign content" mode

Properly simulate self-closing tags when in "foreign content" mode

When background parsing, a tag that "opens" foreign content mode and had
the "self-closing" flag set (<svg/> and <math/>), would place the
simulator in foreign content mode without a chance to get out of it.
Run the "end tag" steps in this case too, to properly balance the
namespace stack.

BUG=537642
Committed: https://crrev.com/a6f11c32eb4c9534373b317d470fb9c56a1dfa0e
Cr-Commit-Position: refs/heads/master@{#436569}

[fs, 2016-12-05 12:30:03]

The CQ bit was checked by fs@opera.com to run a CQ dry run

[commit-bot: I haz the power, 2016-12-05 12:30:16]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-05 13:06:07]

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

[commit-bot: I haz the power, 2016-12-05 13:06:07]

Dry run: Try jobs failed on following builders:
  linux_chromium_compile_dbg_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[fs, 2016-12-05 13:08:43]

The CQ bit was checked by fs@opera.com to run a CQ dry run

[commit-bot: I haz the power, 2016-12-05 13:08:56]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-05 14:30:29]

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

[commit-bot: I haz the power, 2016-12-05 14:30:30]

Dry run: This issue passed the CQ dry run.

[fs, 2016-12-05 14:33:09]

fs@opera.com changed reviewers:
+ kouhei@chromium.org

[kouhei (in TOK), 2016-12-06 00:59:30]

lgtm

Thanks

[fs, 2016-12-06 11:28:21]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2016-12-06 11:28:34]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-06 11:32:32]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1481023701559580,
"parent_rev": "77f0b7ba71d4e616197cd4f78934707c4d35ad98", "commit_rev":
"fac5a0a02f115e84b3cfc8562a89718bb30e3914"}

[commit-bot: I haz the power, 2016-12-06 11:33:01]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-12-06 11:35:44]

Description was changed from

==========
Properly simulate self-closing tags when in "foreign content" mode

When background parsing, a tag that "opens" foreign content mode and had
the "self-closing" flag set (<svg/> and <math/>), would place the
simulator in foreign content mode without a chance to get out of it.
Run the "end tag" steps in this case too, to properly balance the
namespace stack.

BUG=537642
==========

to

==========
Properly simulate self-closing tags when in "foreign content" mode

When background parsing, a tag that "opens" foreign content mode and had
the "self-closing" flag set (<svg/> and <math/>), would place the
simulator in foreign content mode without a chance to get out of it.
Run the "end tag" steps in this case too, to properly balance the
namespace stack.

BUG=537642

Committed: https://crrev.com/a6f11c32eb4c9534373b317d470fb9c56a1dfa0e
Cr-Commit-Position: refs/heads/master@{#436569}
==========

[commit-bot: I haz the power, 2016-12-06 11:35:45]

Patchset 2 (id:??) landed as
https://crrev.com/a6f11c32eb4c9534373b317d470fb9c56a1dfa0e
Cr-Commit-Position: refs/heads/master@{#436569}