Revert of Revert of Move DstCopy on gpu into the GrXferProcessor.

src/gpu/GrBatchTarget.h

Index: src/gpu/GrBatchTarget.h
diff --git a/src/gpu/GrBatchTarget.h b/src/gpu/GrBatchTarget.h
index ff9208fdac247452258555136786d6a5b3f86e5b..8cd91d37e1412fc6f1cd26e2a4fadf0a1a867ad2 100644
--- a/src/gpu/GrBatchTarget.h
+++ b/src/gpu/GrBatchTarget.h
@@ -56,8 +56,7 @@
             BufferedFlush* bf = fIter.get();
             const GrPipeline* pipeline = bf->fPipeline;
             const GrPrimitiveProcessor* primProc = bf->fPrimitiveProcessor.get();
-            fGpu->buildProgramDesc(&desc, *primProc, *pipeline, pipeline->descInfo(),
-                                   bf->fBatchTracker);
+            fGpu->buildProgramDesc(&desc, *primProc, *pipeline, bf->fBatchTracker);
 
             GrGpu::DrawArgs args(primProc, pipeline, &desc, &bf->fBatchTracker);