Have Node::enclosingLinkEventParentOrSelf() return an Element

Have Node::enclosingLinkEventParentOrSelf() return an Element

Have Node::enclosingLinkEventParentOrSelf() return an Element so that the
caller does not have to do an unsafe-looking toElement() cast.

R=adamk@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=179281

[adamk, 2014-07-30 23:57:14]

lgtm

[Inactive, 2014-07-30 23:59:02]

The CQ bit was checked by ch.dumez@samsung.com

[commit-bot: I haz the power, 2014-07-30 23:59:44]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/417093006/1

[commit-bot: I haz the power, 2014-07-31 01:12:23]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_blink_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/1...)

[commit-bot: I haz the power, 2014-07-31 01:14:53]

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

[commit-bot: I haz the power, 2014-07-31 01:14:54]

Try jobs failed on following builders:
  linux_blink_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/1...)

[Inactive, 2014-07-31 01:48:25]

The CQ bit was checked by ch.dumez@samsung.com

[commit-bot: I haz the power, 2014-07-31 01:48:44]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/417093006/20001

[commit-bot: I haz the power, 2014-07-31 02:53:27]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_blink_compile_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_compile_dbg/bu...)

[commit-bot: I haz the power, 2014-07-31 03:19:12]

Change committed as 179281