Enable ImageGenerator tests on direct raster and direct gpu backends

dm/DMSrcSink.cpp

Index: dm/DMSrcSink.cpp
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index 1e323cbdee5208b668302b70070a2adbc2aaf678..1573f9ac66b5dbf74480604c98541dbdaa4dea59 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -271,7 +271,7 @@ CodecSrc::CodecSrc(Path path, Mode mode, DstColorType dstColorType, SkAlphaType
 bool CodecSrc::veto(SinkFlags flags) const {
     // Test CodecImageGenerator on 8888, 565, and gpu
     if (kGen_Mode == fMode) {
-        return flags.type != SinkFlags::kRaster || flags.type != SinkFlags::kGPU ||
+        return (flags.type != SinkFlags::kRaster && flags.type != SinkFlags::kGPU) ||

[djsollen, 2016/02/10 14:10:54]

put a comment here that we only want to test Direct for Raster and GPU while
skipping everything else.

[msarett, 2016/02/10 14:14:41]

Done.

                 flags.approach != SinkFlags::kDirect;
     }