use left-shift macro to fix/avoid undefined behvarior warnings

use left-shift macro to fix/avoid undefined behvarior warnings

motivated by https://codereview.chromium.org/1657333002/

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1661873003

Committed: https://skia.googlesource.com/skia/+/513d30726373909fbb1cd4b3734348494638abcd

[reed1, 2016-02-03 17:45:57]

Description was changed from

==========
use left-shift macro to fix/avoid undefined behvarior warnings

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

to

==========
use left-shift macro to fix/avoid undefined behvarior warnings

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

[reed1, 2016-02-03 17:46:26]

Description was changed from

==========
use left-shift macro to fix/avoid undefined behvarior warnings

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

to

==========
use left-shift macro to fix/avoid undefined behvarior warnings

motivated by https://codereview.chromium.org/1657333002/

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

[reed1, 2016-02-03 17:46:39]

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

[reed1, 2016-02-03 17:46:43]

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

[commit-bot: I haz the power, 2016-02-03 17:46:52]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1661873003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1661873003/1

[mtklein, 2016-02-03 17:51:22]

lgtm

[reed1, 2016-02-03 18:08:08]

The CQ bit was unchecked by reed@google.com

[reed1, 2016-02-03 18:08:12]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2016-02-03 18:08:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1661873003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1661873003/1

[commit-bot: I haz the power, 2016-02-03 18:16:16]

Description was changed from

==========
use left-shift macro to fix/avoid undefined behvarior warnings

motivated by https://codereview.chromium.org/1657333002/

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

to

==========
use left-shift macro to fix/avoid undefined behvarior warnings

motivated by https://codereview.chromium.org/1657333002/

BUG=skia:
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...

Committed:
https://skia.googlesource.com/skia/+/513d30726373909fbb1cd4b3734348494638abcd
==========

[commit-bot: I haz the power, 2016-02-03 18:16:16]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/513d30726373909fbb1cd4b3734348494638abcd