Progress HTMLDocumentParser state on non-interrupted cases

Progress HTMLDocumentParser state on non-interrupted cases

Before this patch, HTMLDocumentParser never progressed to StoppedState
but stuck in StoppingState when parsing finished without being interrupted.
This patch adds a call to |DocumentParser::stopParsing()| to ensure its
|m_state| progress to StoppedState.

BUG=409461
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=181346

[kouhei (in TOK), 2014-09-03 20:17:32]

kouhei@chromium.org changed reviewers:
+ abarth@chromium.org, eseidel@chromium.org

[kouhei (in TOK), 2014-09-03 20:17:33]

Would you take a look?

[eseidel, 2014-09-03 22:30:16]

What state did it get stuck in?

Otherwise seems reasonable to me.  lgtm.

[kouhei (in TOK), 2014-09-03 22:31:18]

On 2014/09/03 22:30:16, eseidel wrote:
> What state did it get stuck in?
> 
> Otherwise seems reasonable to me.  lgtm.

It was stuck in StoppingState.

[kouhei (in TOK), 2014-09-03 22:31:43]

The CQ bit was checked by kouhei@chromium.org

[commit-bot: I haz the power, 2014-09-03 22:32:02]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/kouhei@chromium.org/532343002/1

[commit-bot: I haz the power, 2014-09-03 22:35:58]

Committed patchset #1 (id:1) as 181346