don't define SK_USE_LEGACY_AA_COVERAGE, so that we can get the more exact coverage values (which also unifies our RLE and MASK supersampler results).
don't define SK_USE_LEGACY_AA_COVERAGE, so that we can get the more exact
coverage values (which also unifies our RLE and MASK supersampler results).

Chrome will want to define SK_USE_LEGACY_AA_COVERAGE for now, until it can
rebaseline its affected images.

A rebaseline of skia gm images will follow.



git-svn-id: e8541e15acce502a64c929015570ad1648e548cd@3877 2bbb7eff-a529-9590-31e7-b0007b416f81

Hankuo/color-emoji.skia,MatChung/color-emoji.skia,hbwhlklive/color-emoji.skia,Frankie-666/color-emoji.skia,MatChung/color-emoji.skia,MatChung/color-emoji.skia,Hankuo/color-emoji.skia,Hankuo/color-emoji.skia,hbwhlklive/color-emoji.skia,Hankuo/color-emoji.skia,hbwhlklive/color-emoji.skia,Frankie-666/color-emoji.skia,Frankie-666/color-emoji.skia,MatChung/color-emoji.skia,Hankuo/color-emoji.skia,hbwhlklive/color-emoji.skia,hbwhlklive/color-emoji.skia,hbwhlklive/color-emoji.skia,Frankie-666/color-emoji.skia,MatChung/color-emoji.skia,Hankuo/color-emoji.skia,Frankie-666/color-emoji.skia,MatChung/color-emoji.skia,Frankie-666/color-emoji.skia