scroggo f84ad646f9 Reland "Build SkRawCodec in GN" ... Add BUILD.gn files for dng_sdk and piex and updated BUILD.gn to build SkRawCodec. We stopped testing raw images when we switched to GN, so this will bring back our testing. Leave SkRawCodec disabled on Windows, where we've had problems in the past. Originally landed in issue 4603. Reverted due to build errors. GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2463433002 Review-Url: https://codereview.chromium.org/2463433002		2016-10-31 09:02:57 -07:00
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BUILD.gn	Reland "Build SkRawCodec in GN"	2016-10-31 09:02:57 -07:00