Add sampler bias for the nofilter/translate specializations

Add sampler bias for the nofilter/translate specializations

Convert SkBitmapProcState::setupForTranslate() to use
SkBitmapProcStateAutoMapper.  This adds bias for the translate procs:
Clamp_S32_D32_nofilter_trans_shaderproc,
Repeat_S32_D32_nofilter_trans_shaderproc

Since the original impl checks for int overflow, extend
SkBitmapProcStateAutoMapper to detect this condition.

BUG=chromium:581870
R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1642273002

Review URL: https://codereview.chromium.org/1642273002