Deprecate Attr.nodeValue / Attr.textContent

Deprecate Attr.nodeValue / Attr.textContent

Deprecate Attr.nodeValue / Attr.textContent as those are no longer present
in DOM:
http://dom.spec.whatwg.org/#interface-attr

This behavior is consistent with Firefox (confirmed with version 28), which
also prints a deprecation warning when accessing those 2 properties on an Attr
object. The warning message promotes the use of Attr.value instead.

R=arv@chromium.org, tkent@chromium.org
BUG=305105
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=172803

[eseidel, 2014-04-28 17:08:27]

Is usage low enough that these won't be spam?

[Inactive, 2014-04-28 17:15:15]

On 2014/04/28 17:08:27, eseidel wrote:
> Is usage low enough that these won't be spam?

Firefox is also printing warnings so hopefully, this is not too bad but I will
double check with the Alexa top sites right now.

[eseidel, 2014-04-28 17:17:08]

lgtm

I'm not sure the top 1000 is a very useful signal.  I Think we just try and turn
these off if they're too high.

[commit-bot: I haz the power, 2014-04-28 17:17:40]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/253843002/40001

[commit-bot: I haz the power, 2014-04-28 17:36:03]

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

[commit-bot: I haz the power, 2014-04-28 17:36:03]

Try jobs failed on following builders:
  tryserver.blink on mac_blink_rel

[Inactive, 2014-04-28 17:37:53]

On 2014/04/28 17:36:03, I haz the power (commit-bot) wrote:
> Try jobs failed on following builders:
>   tryserver.blink on mac_blink_rel

Looks like the try bots are in a bad state?

[arv (Not doing code reviews), 2014-04-28 17:49:02]

LGTM

[Inactive, 2014-04-28 19:27:33]

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

[commit-bot: I haz the power, 2014-04-28 19:27:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/253843002/40001

[commit-bot: I haz the power, 2014-04-28 20:05:12]

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

[commit-bot: I haz the power, 2014-04-28 20:05:13]

Try jobs failed on following builders:
  tryserver.blink on linux_blink_rel

[Inactive, 2014-04-28 20:07:23]

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

[commit-bot: I haz the power, 2014-04-28 20:07:48]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/253843002/40001

[commit-bot: I haz the power, 2014-04-28 20:43:15]

Change committed as 172803