Move DstCopy on gpu into the GrXferProcessor.

src/gpu/GrBatchTarget.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrBatchTarget.h"
 
 #include "GrBufferAllocPool.h"
 #include "GrPipeline.h"
 
 /*
 void GrBatchTarget::flush() {
     FlushBuffer::Iter iter(fFlushBuffer);
     fVertexPool->unmap();
     fIndexPool->unmap();
 
     while (iter.next()) {
         GrProgramDesc desc;
         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++) {
             fGpu->draw(args, bf->fDraws[i]);
         }
     }
     fFlushBuffer.reset();
 }*/
 /*
 void GrBatchTarget::flushNext(int n) {
     for (; n > 0; n--) {
         SkDEBUGCODE(bool verify =) fIter.next();
         SkASSERT(verify);
         GrProgramDesc desc;
         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++) {
             fGpu->draw(args, bf->fDraws[i]);
         }
     }
 }*/