Handle NinePatchLayer Resource Rebuilding.

Handle NinePatchLayer Resource Rebuilding.

When we minimize the application our PrioritizedResourceManager dies.  This clears the
PrioritizedTexture state and decouples the texture from the manager.  When we bring our
application back to the foreground a new PrioritizedResourceManager is created, but we
still hold onto our old PrioritizedResource.  Trying to reupload a bitmap on this
resource fails due to a variety of DCHECK/CHECKs at this point.  Now if the
PrioritizedResource has no PrioritizedResourceManager we rebuild the resource.

BUG=http://crbug.com/161278


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=168122

[David Trainor- moved to gerrit, 2012-11-15 22:22:05]

PTAL.  We were getting consistent crashes on bringing Chrome for Android back to
the foreground, this fixes it by properly rebuilding the PrioritizedResource.

[aelias_OOO_until_Jul13, 2012-11-15 23:30:17]

lgtm

[David Trainor- moved to gerrit, 2012-11-15 23:35:42]

Hey enne would you mind taking a quick look at this?  Sorry for pinging both you
and James but we're trying to push a build and this is blocking it :(.  Need an
owner to take a look.

[jamesr, 2012-11-15 23:37:53]

lgtm

sorry for the delay - I thought aelias@ was OWNERS here already, but looks like
even though the deadline has passed he's not marked as an official full
committer yet.  I'll ping that.

[commit-bot: I haz the power, 2012-11-15 23:44:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dtrainor@chromium.org/11420021/1

[enne (OOO), 2012-11-15 23:49:35]

This is exactly the kind of roll-your-own-resource-management bug that I was
hoping a DecorationManager would prevent.

[aelias_OOO_until_Jul13, 2012-11-15 23:53:35]

On 2012/11/15 23:49:35, enne wrote:
> This is exactly the kind of roll-your-own-resource-management bug that I was
> hoping a DecorationManager would prevent.

Agreed, sorry about this.  This class will move over to a centralized
DecorationManager when we have spare cycles.

[commit-bot: I haz the power, 2012-11-16 03:15:11]

Change committed as 168122