Fix a bug in the Clamp in X direction tiling.

Fix a bug in the Clamp in X direction tiling.
The code mixed up which end of the span was cut and preserved in the
sequence of span breaks.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2145193002

Committed: https://skia.googlesource.com/skia/+/494c2b6fa125d85d99fb6e9b479f21f4f76c32bb

[herb_g, 2016-07-13 21:44:11]

Description was changed from

==========
Fix a bug in the Clamp in X direction tiling.
The code mixed up which end of the span was cut and preserved in the
sequence of span breaks.

BUG=skia:
==========

to

==========
Fix a bug in the Clamp in X direction tiling.
The code mixed up which end of the span was cut and preserved in the
sequence of span breaks.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2145193002
==========

[herb_g, 2016-07-13 21:45:42]

herb@google.com changed reviewers:
+ mtklein@google.com

[herb_g, 2016-07-13 21:45:43]

I guess this code was never run, because this was clearly wrong. Tested by
inspection using the linear_pipeline GM with tiling changed to clamp.

[herb_g, 2016-07-13 21:45:54]

The CQ bit was checked by herb@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-07-13 21:45:55]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-13 22:08:44]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-07-13 22:08:45]

Dry run: This issue passed the CQ dry run.

[mtklein_C, 2016-07-14 21:49:45]

mtklein@chromium.org changed reviewers:
+ mtklein@chromium.org

[mtklein_C, 2016-07-14 21:49:45]

The CQ bit was checked by mtklein@chromium.org

[mtklein_C, 2016-07-14 21:49:46]

lgtm

[commit-bot: I haz the power, 2016-07-14 21:49:54]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-14 21:50:53]

Description was changed from

==========
Fix a bug in the Clamp in X direction tiling.
The code mixed up which end of the span was cut and preserved in the
sequence of span breaks.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2145193002
==========

to

==========
Fix a bug in the Clamp in X direction tiling.
The code mixed up which end of the span was cut and preserved in the
sequence of span breaks.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2145193002

Committed:
https://skia.googlesource.com/skia/+/494c2b6fa125d85d99fb6e9b479f21f4f76c32bb
==========

[commit-bot: I haz the power, 2016-07-14 21:50:53]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/494c2b6fa125d85d99fb6e9b479f21f4f76c32bb