Delete all invalidated resources with same key

Delete all invalidated resources with same key

Delete all invalidated resources with same key instead of deleting
just the first resource.

Committed: http://code.google.com/p/skia/source/detail?r=13019

BUG=

[Kimmo Kinnunen, 2013-12-05 14:46:23]

Due to test, depends on https://codereview.chromium.org/91453002/

[mtklein, 2014-01-09 16:44:59]

I think we can land this one right away.  I have taken the liberty of updating
it so it can land independently of the other CL.  Did I do a faithful
transcription (Patch Set 2)?

[Kimmo Kinnunen, 2014-01-10 06:42:50]

On 2014/01/09 16:44:59, mtklein wrote:
> I think we can land this one right away.  I have taken the liberty of updating
> it so it can land independently of the other CL.  Did I do a faithful
> transcription (Patch Set 2)?

Yes, transcription seems good by me. Thanks!

[mtklein, 2014-01-10 14:11:29]

lgtm

[commit-bot: I haz the power, 2014-01-10 14:11:44]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/kkinnunen@nvidia.com/106563002/40001

[commit-bot: I haz the power, 2014-01-10 16:39:23]

Change committed as 13019

[mtklein, 2014-01-10 17:58:15]

A revert of this CL has been created in
https://codereview.chromium.org/134363002/ by mtklein@google.com.

The reason for reverting is: There's a threading issue I don't quite understand
yet.  Objects are being deleted after we check they're deleted.  Will try
again..