add bench for sprite-like drawing w/ imagefilters
add bench for sprite-like drawing w/ imagefilters

visualbench run on Mac Pro

curr/maxrss	loops	min	median	mean	max	stddev	samples   	config	bench
  96/96  MB	16	412µs	413µs	413µs	414µs	0%	▄▁█▅▅▅▅▆▅▃▅	gpu	warmupbench
  98/98  MB	4	1.86ms	1.86ms	1.86ms	1.86ms	0%	▁▂▇█▆▅▇▄▃▃▃	gpu	image-filter-sprite-draw-image
 100/100 MB	4	1.86ms	1.86ms	1.86ms	1.86ms	0%	▆▇▅▄▁▆▅█▅▄▅	gpu	image-filter-sprite-draw-bitmap
 100/100 MB	32	547µs	548µs	590µs	1.01ms	24%	█▁▁▁▁▁▁▁▁▁▁	gpu	image-filter-sprite-draw-sprite

BUG=skia:

Review URL: https://codereview.chromium.org/1497843003

HalCanary/skia-hc,HalCanary/skia-hc,google/skia,Hikari-no-Tenshi/android_external_skia,HalCanary/skia-hc,qrealka/skia-hc,google/skia,HalCanary/skia-hc,tmpvar/skia.cc,HalCanary/skia-hc,qrealka/skia-hc,tmpvar/skia.cc,qrealka/skia-hc,HalCanary/skia-hc,aosp-mirror/platform_external_skia,HalCanary/skia-hc,HalCanary/skia-hc,google/skia,Hikari-no-Tenshi/android_external_skia,tmpvar/skia.cc,rubenvb/skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,qrealka/skia-hc,aosp-mirror/platform_external_skia,qrealka/skia-hc,tmpvar/skia.cc,tmpvar/skia.cc,Hikari-no-Tenshi/android_external_skia,google/skia,rubenvb/skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,rubenvb/skia,rubenvb/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,qrealka/skia-hc,rubenvb/skia,qrealka/skia-hc,aosp-mirror/platform_external_skia,qrealka/skia-hc,rubenvb/skia,Hikari-no-Tenshi/android_external_skia,tmpvar/skia.cc,tmpvar/skia.cc,google/skia,HalCanary/skia-hc,tmpvar/skia.cc,rubenvb/skia,google/skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,rubenvb/skia,tmpvar/skia.cc,rubenvb/skia,rubenvb/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia