Bootstrap to extend WTF:RefPtr's run-time adoption checking to skia's SkRefCnt

Bootstrap to extend WTF:RefPtr's run-time adoption checking to skia's SkRefCnt

With this change, refIfNotNull will now call RequireAdoption on the referenced
object in order to enable run-time adoption checking.  This is essential for
skia's SkRefCnt, which cannot have adoption checks enabled by default because
skia does not always use smart pointers internally, and has no explicit
notion of reference adoption.

BUG=304265
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=159028

[Justin Novosad, 2013-10-04 20:14:04]

PTAL

Companion skia CL: https://codereview.chromium.org/25432003

[abarth-chromium, 2013-10-04 20:37:58]

Neat!

https://codereview.chromium.org/25589003/diff/1/Source/wtf/PassRefPtr.h
File Source/wtf/PassRefPtr.h (right):

https://codereview.chromium.org/25589003/diff/1/Source/wtf/PassRefPtr.h#newco...
Source/wtf/PassRefPtr.h:43: inline void adoptionRequired(const void*) { }
adoptionRequired -> requireAdoption ?  setAdoptionRequired?

As named, it sounds like it would return a bool indicating whether adoption is
required for this object.

[Justin Novosad, 2013-10-04 21:19:54]

On 2013/10/04 20:37:58, abarth wrote:

> As named, it sounds like it would return a bool indicating whether adoption is
> required for this object.

Done.

[abarth-chromium, 2013-10-05 00:09:34]

lgtm

[commit-bot: I haz the power, 2013-10-05 00:09:48]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/junov@chromium.org/25589003/6001

[commit-bot: I haz the power, 2013-10-05 02:22:51]

Retried try job too often on win_blink_rel for step(s) webkit_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_blink_...

[commit-bot: I haz the power, 2013-10-07 13:21:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/junov@chromium.org/25589003/6001

[commit-bot: I haz the power, 2013-10-07 14:05:15]

Change committed as 159028