make getContentKey() available in GrGpuResource public interface

make getContentKey() available in GrGpuResource public interface

TBR=robertphillips@google.com

Committed: https://skia.googlesource.com/skia/+/85ed2db092e75db41b711b9116a8d5b465fc2b0c

Committed: https://skia.googlesource.com/skia/+/563ff60b33fa50b9c6a48dd048b8b36a88596668

[bsalomon, 2015-02-02 21:49:53]

bsalomon@google.com changed reviewers:
+ robertphillips@google.com

[bsalomon, 2015-02-02 21:49:53]

This allows creating resource content keys that wrap other keys (e.g. npot)
without requiring the access to the CacheAccess class.

[bsalomon, 2015-02-02 22:01:20]

The CQ bit was checked by bsalomon@google.com

[commit-bot: I haz the power, 2015-02-02 22:01:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/886313005/20001

[commit-bot: I haz the power, 2015-02-02 22:08:12]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/85ed2db092e75db41b711b9116a8d5b465fc2b0c

[stephana, 2015-02-02 22:51:40]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/864343005/ by stephana@google.com.

The reason for reverting is: This causes in one case the linker and in the other
the compiler to segfault. On

Test-Ubuntu12-ShuttleA-GTX660-x86_64-Debug/Release

.

[bsalomon, 2015-02-03 01:24:51]

On 2015/02/02 22:51:40, stephana wrote:
> A revert of this CL (patchset #2 id:20001) has been created in
> https://codereview.chromium.org/864343005/ by mailto:stephana@google.com.
> 
> The reason for reverting is: This causes in one case the linker and in the
other
> the compiler to segfault. On
> 
> Test-Ubuntu12-ShuttleA-GTX660-x86_64-Debug/Release
> 
> .

try bots seem to be succeeding. Gonna give it another try.

[bsalomon, 2015-02-03 01:24:55]

The CQ bit was checked by bsalomon@google.com

[bsalomon, 2015-02-03 01:25:02]

The CQ bit was checked by bsalomon@google.com

[commit-bot: I haz the power, 2015-02-03 01:25:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/886313005/20001

[commit-bot: I haz the power, 2015-02-03 01:25:29]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/563ff60b33fa50b9c6a48dd048b8b36a88596668

[robertphillips, 2015-02-03 14:01:46]

lgtm