Move Node::lastDescendantOrSelf() to NodeTraversal and rename to lastWithinOrSelf()

Move Node::lastDescendantOrSelf() to NodeTraversal and rename to lastWithinOrSelf()

Move Node::lastDescendantOrSelf() to NodeTraversal and rename to
lastWithinOrSelf() as this is a node traversal utility function and it avoids
code duplication with NodeTraversal::lastWithin().

R=esprehn@chromium.org, adamk@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=179062

[adamk, 2014-07-28 20:57:40]

lgtm

[Inactive, 2014-07-28 20:58:37]

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

[commit-bot: I haz the power, 2014-07-28 20:58:58]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/420323002/1

[commit-bot: I haz the power, 2014-07-28 21:01:44]

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

[commit-bot: I haz the power, 2014-07-28 21:04:16]

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

[commit-bot: I haz the power, 2014-07-28 21:04:17]

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

[Inactive, 2014-07-28 21:27:49]

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

[commit-bot: I haz the power, 2014-07-28 21:28:10]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/420323002/20001

[commit-bot: I haz the power, 2014-07-28 23:00:46]

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

[commit-bot: I haz the power, 2014-07-28 23:11:25]

Change committed as 179062