fix a couple flaky nonnull attribute ubsan warnings

fix a couple flaky nonnull attribute ubsan warnings

Errors this should fix:
  https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN/builds/3779/steps/dm/logs/stdio
  https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN/builds/3779/steps/nanobench/logs/stdio

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot

TBR=reed@google.com
No API changes.

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/02046c50b294ae2b28e562b0e6e281e4ef823352

[mtklein, 2015-12-09 17:12:08]

Description was changed from

==========
fix a couple flaky nonnull attribute ubsan warnings

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

to

==========
fix a couple flaky nonnull attribute ubsan warnings

Errors this should fix:
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...

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

[mtklein, 2015-12-09 17:12:32]

Description was changed from

==========
fix a couple flaky nonnull attribute ubsan warnings

Errors this should fix:
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...

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

to

==========
fix a couple flaky nonnull attribute ubsan warnings

Errors this should fix:
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot

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

[mtklein, 2015-12-09 17:13:03]

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

[commit-bot: I haz the power, 2015-12-09 17:13:13]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1504313005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1504313005/1

[mtklein_C, 2015-12-09 17:18:19]

mtklein@chromium.org changed reviewers:
+ herb@google.com
- mtklein@google.com

[commit-bot: I haz the power, 2015-12-09 17:36:27]

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

[commit-bot: I haz the power, 2015-12-09 17:36:28]

Dry run: This issue passed the CQ dry run.

[herb_g, 2015-12-09 18:00:36]

lgtm

[mtklein, 2015-12-09 18:01:29]

Description was changed from

==========
fix a couple flaky nonnull attribute ubsan warnings

Errors this should fix:
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot

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

to

==========
fix a couple flaky nonnull attribute ubsan warnings

Errors this should fix:
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot

TBR=reed@google.com
No API changes.

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

[mtklein, 2015-12-09 18:01:34]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2015-12-09 18:01:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1504313005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1504313005/1

[commit-bot: I haz the power, 2015-12-09 18:02:16]

Description was changed from

==========
fix a couple flaky nonnull attribute ubsan warnings

Errors this should fix:
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot

TBR=reed@google.com
No API changes.

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

to

==========
fix a couple flaky nonnull attribute ubsan warnings

Errors this should fix:
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...
 
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-G...

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot

TBR=reed@google.com
No API changes.

BUG=skia:

Committed:
https://skia.googlesource.com/skia/+/02046c50b294ae2b28e562b0e6e281e4ef823352
==========

[commit-bot: I haz the power, 2015-12-09 18:02:16]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/02046c50b294ae2b28e562b0e6e281e4ef823352