Add four_byte_interp benches.

Desktop:
running bench [640 480] four_byte_interp_slow_256    NONRENDERING: cmsecs =      6.18
running bench [640 480] four_byte_interp_slow_255    NONRENDERING: cmsecs =      6.83
running bench [640 480] four_byte_interp_fast_256    NONRENDERING: cmsecs =      5.02
running bench [640 480] four_byte_interp_fast_255    NONRENDERING: cmsecs =      5.88

N5:
running bench [640 480] four_byte_interp_slow_256    NONRENDERING: cmsecs =     22.84
running bench [640 480] four_byte_interp_slow_255    NONRENDERING: cmsecs =     25.11
running bench [640 480] four_byte_interp_fast_256    NONRENDERING: cmsecs =     18.89
running bench [640 480] four_byte_interp_fast_255    NONRENDERING: cmsecs =     22.32

BUG=
R=reed@google.com

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/93933003

git-svn-id: http://skia.googlecode.com/svn/trunk@12444 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed