Disable sharing of stencil buffers across differently sized rendertargets

Disable sharing of stencil buffers across differently sized rendertargets

Due to revertapalooza, stencil buffers shared across differently sized rendertargets aren't getting cleared correctly. This CL disables the sharing until the clearing issues can be remedied. Note that stencil buffers should still be shared between identically sized render targets and should still be lazily allocated.

Committed: https://skia.googlesource.com/skia/+/ca75ea871e40cc4ebd19bfa26a096bec19fd464e

[robertphillips, 2015-03-20 13:24:14]

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

[egdaniel, 2015-03-20 13:33:14]

lgtm

[robertphillips, 2015-03-20 13:33:25]

The CQ bit was checked by robertphillips@google.com

[commit-bot: I haz the power, 2015-03-20 13:33:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1020203002/1

[commit-bot: I haz the power, 2015-03-20 13:43:20]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/ca75ea871e40cc4ebd19bfa26a096bec19fd464e