Add repro GM for GPU clipped-AA vs. non-AA drawRect discrepancy

Add repro GM for  GPU clipped-AA vs. non-AA drawRect discrepancy

In the clip stack we were manually rounding out non-AA clip rects but leaving the hardening of non-AA drawRects up to the GPU. In some border cases the GPU can truncate rather than round out resulting in visual discrepancies.

BUG=423834
Committed: https://skia.googlesource.com/skia/+/933a03fecb65c83f81cf65d5cf9870c69aa379ff

Committed: https://skia.googlesource.com/skia/+/028b98a08072bd1764936e47c54fa2da5cf92744

[robertphillips, 2015-01-09 20:38:05]

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

[robertphillips, 2015-01-09 20:38:54]

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

[bsalomon, 2015-01-12 22:17:53]

On 2015/01/12 13:57:23, robertphillips wrote:

lgtm

[robertphillips, 2015-01-12 23:41:10]

The CQ bit was checked by robertphillips@google.com

[commit-bot: I haz the power, 2015-01-12 23:41:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/839883003/20001

[commit-bot: I haz the power, 2015-01-12 23:50:40]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/933a03fecb65c83f81cf65d5cf9870c69aa379ff

[robertphillips, 2015-01-13 02:25:13]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/847033002/ by robertphillips@google.com.

The reason for reverting is: This CL introduces rendering conflicts with
hairlines (i.e., the hairlines get overwritten). These conflicts are
particularly visible on the following GMs (for the Ubuntu and Android gpu
configs):

coloremoji & complexclip2_rrect_bw.

[robertphillips, 2015-01-14 17:33:21]

The CQ bit was checked by robertphillips@google.com

[commit-bot: I haz the power, 2015-01-14 17:34:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/839883003/60001

[commit-bot: I haz the power, 2015-01-14 17:44:05]

Committed patchset #4 (id:60001) as
https://skia.googlesource.com/skia/+/028b98a08072bd1764936e47c54fa2da5cf92744