Add UseCounters for Element.webkitRequestFullscreen/webkitRequestFullScreen

Add UseCounters for Element.webkitRequestFullscreen/webkitRequestFullScreen

Spawned from "Is there a plan for shipping unprefixed fullscreen API?"

https://groups.google.com/a/chromium.org/d/msg/blink-dev/iElkfxDU7d4/gV0HS8guXscJ

BUG=none

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=160329

[jochen (gone - plz use gerrit), 2013-10-23 09:37:02]

https://codereview.chromium.org/36573003/diff/1/Source/core/page/UseCounter.h
File Source/core/page/UseCounter.h (right):

https://codereview.chromium.org/36573003/diff/1/Source/core/page/UseCounter.h...
Source/core/page/UseCounter.h:238: PrefixedElementRequestFullscreen,
maybe we should add Mozilla and W3C suffixes as opposed to just a different case
of S?

[philipj_slow, 2013-10-23 09:41:31]

https://codereview.chromium.org/36573003/diff/1/Source/core/page/UseCounter.h
File Source/core/page/UseCounter.h (right):

https://codereview.chromium.org/36573003/diff/1/Source/core/page/UseCounter.h...
Source/core/page/UseCounter.h:238: PrefixedElementRequestFullscreen,
On 2013/10/23 09:37:03, jochen wrote:
> maybe we should add Mozilla and W3C suffixes as opposed to just a different
case
> of S?

I wanted to be consistent (um) with PrefixedVideo* above, but I would you like
PrefixedElementRequestFullscreenW3C and PrefixedElementRequestFullScreenMozilla,
then?

[jochen (gone - plz use gerrit), 2013-10-23 09:44:27]

On 2013/10/23 09:41:31, philipj wrote:
> https://codereview.chromium.org/36573003/diff/1/Source/core/page/UseCounter.h
> File Source/core/page/UseCounter.h (right):
> 
>
https://codereview.chromium.org/36573003/diff/1/Source/core/page/UseCounter.h...
> Source/core/page/UseCounter.h:238: PrefixedElementRequestFullscreen,
> On 2013/10/23 09:37:03, jochen wrote:
> > maybe we should add Mozilla and W3C suffixes as opposed to just a different
> case
> > of S?
> 
> I wanted to be consistent (um) with PrefixedVideo* above, but I would you like
> PrefixedElementRequestFullscreenW3C and
PrefixedElementRequestFullScreenMozilla,
> then?

oh well, since we already have this, lgtm i guess

[commit-bot: I haz the power, 2013-10-23 09:49:43]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/philipj@opera.com/36573003/1

[commit-bot: I haz the power, 2013-10-23 10:47:39]

Change committed as 160329