BenchmarkARGBDetect_Unaligned fix off by one in unitest

fix off by one in unitest BenchmarkARGBDetect_Unaligned where array is initialized beyond end by 1.

TBR=harryjin@google.com
BUG=libyuv:595
TESTED=local unittest passes on try bots

Committed: https://chromium.googlesource.com/libyuv/libyuv/+/6020d2aa641fe3e395e8ee186ee97fa9a817250c

[fbarchard1, 2016-05-24 22:32:37]

Description was changed from

==========
fix off by one in unitest

R=harryjin@google.com
BUG=libyuv:595
TESTED=local unittest passes on try bots
==========

to

==========
fix off by one in unitest BenchmarkARGBDetect_Unaligned where array is
initialized beyond end by 1.

R=harryjin@google.com
BUG=libyuv:595
TESTED=local unittest passes on try bots
==========

[fbarchard1, 2016-05-24 22:32:45]

Description was changed from

==========
fix off by one in unitest BenchmarkARGBDetect_Unaligned where array is
initialized beyond end by 1.

R=harryjin@google.com
BUG=libyuv:595
TESTED=local unittest passes on try bots
==========

to

==========
fix off by one in unitest BenchmarkARGBDetect_Unaligned where array is
initialized beyond end by 1.

TBR=harryjin@google.com
BUG=libyuv:595
TESTED=local unittest passes on try bots
==========

[fbarchard1, 2016-05-24 22:33:30]

Description was changed from

==========
fix off by one in unitest BenchmarkARGBDetect_Unaligned where array is
initialized beyond end by 1.

TBR=harryjin@google.com
BUG=libyuv:595
TESTED=local unittest passes on try bots
==========

to

==========
fix off by one in unitest BenchmarkARGBDetect_Unaligned where array is
initialized beyond end by 1.

TBR=harryjin@google.com
BUG=libyuv:595
TESTED=local unittest passes on try bots

Committed:
https://chromium.googlesource.com/libyuv/libyuv/+/6020d2aa641fe3e395e8ee186ee...
==========

[fbarchard1, 2016-05-24 22:33:31]

Committed patchset #1 (id:1) manually as
6020d2aa641fe3e395e8ee186ee97fa9a817250c (presubmit successful).

[harryjin, 2016-05-24 22:34:31]

lgtm