clean up use of register storage class

clean up use of register storage class

This fixes this warning-as-error, so we don't have to stifle it any more:
    error: 'register' storage class specifier is deprecated and incompatible with C++1z [-Werror,-Wdeprecated-register]

Tested by building for mipsel via GN.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289293002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Committed: https://skia.googlesource.com/skia/+/b6064ef5b822ebc14d62170bd4ffa2f7c9bfbe4d

[mtklein_C, 2016-08-30 18:12:44]

Description was changed from

==========
clean up use of register storage class

This fixes this warning-as-error, so we don't have to stifle it any more:
    error: 'register' storage class specifier is deprecated and incompatible
with C++1z [-Werror,-Wdeprecated-register]

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

to

==========
clean up use of register storage class

This fixes this warning-as-error, so we don't have to stifle it any more:
    error: 'register' storage class specifier is deprecated and incompatible
with C++1z [-Werror,-Wdeprecated-register]

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289293002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
==========

[mtklein_C, 2016-08-30 18:13:24]

Description was changed from

==========
clean up use of register storage class

This fixes this warning-as-error, so we don't have to stifle it any more:
    error: 'register' storage class specifier is deprecated and incompatible
with C++1z [-Werror,-Wdeprecated-register]

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289293002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
==========

to

==========
clean up use of register storage class

This fixes this warning-as-error, so we don't have to stifle it any more:
    error: 'register' storage class specifier is deprecated and incompatible
with C++1z [-Werror,-Wdeprecated-register]

Tested by building for mipsel via GN.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289293002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
==========

[mtklein_C, 2016-08-30 18:13:35]

mtklein@chromium.org changed reviewers:
+ jcgregorio@google.com

[mtklein_C, 2016-08-30 18:13:35]

The CQ bit was checked by mtklein@chromium.org

[commit-bot: I haz the power, 2016-08-30 18:13:48]

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, 2016-08-30 18:13:50]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2016-08-31 00:13 UTC

[jcgregorio, 2016-08-30 18:16:16]

lgtm

[commit-bot: I haz the power, 2016-08-30 18:49:26]

Description was changed from

==========
clean up use of register storage class

This fixes this warning-as-error, so we don't have to stifle it any more:
    error: 'register' storage class specifier is deprecated and incompatible
with C++1z [-Werror,-Wdeprecated-register]

Tested by building for mipsel via GN.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289293002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
==========

to

==========
clean up use of register storage class

This fixes this warning-as-error, so we don't have to stifle it any more:
    error: 'register' storage class specifier is deprecated and incompatible
with C++1z [-Werror,-Wdeprecated-register]

Tested by building for mipsel via GN.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289293002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Committed:
https://skia.googlesource.com/skia/+/b6064ef5b822ebc14d62170bd4ffa2f7c9bfbe4d
==========

[commit-bot: I haz the power, 2016-08-30 18:49:27]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/b6064ef5b822ebc14d62170bd4ffa2f7c9bfbe4d