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

src/gpu/GrBatchTarget.cpp

Index: src/gpu/GrBatchTarget.cpp
diff --git a/src/gpu/GrBatchTarget.cpp b/src/gpu/GrBatchTarget.cpp
index 494bc474f8244ef4cf6ca34eb3ed3c351a7ac729..7a2d14e923fb610e8d37ccfe831b5dc02a317a3c 100644
--- a/src/gpu/GrBatchTarget.cpp
+++ b/src/gpu/GrBatchTarget.cpp
@@ -21,8 +21,7 @@
         BufferedFlush* bf = iter.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);
         for (int i = 0; i < bf->fDraws.count(); i++) {
@@ -40,8 +39,7 @@
         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);
         for (int i = 0; i < bf->fDraws.count(); i++) {