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 1b68923472e97ccc09b01f9e83c9c135933d640d..9d96e612c3fa547d14a229b3264da3977af509a0 100644
--- a/src/gpu/GrBatchTarget.cpp
+++ b/src/gpu/GrBatchTarget.cpp
@@ -21,8 +21,7 @@ void GrBatchTarget::flush() {
         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 @@ void GrBatchTarget::flushNext(int n) {
         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++) {