Make GrBatch carry its own GrPipeline

src/gpu/GrTargetCommands.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 "GrTargetCommands.h"
 
 #include "GrBufferedDrawTarget.h"
@@ skipping 12 matching lines @@
     }
 
     GrGpu* gpu = bufferedDrawTarget->getGpu();
 
     // Loop over all batches and generate geometry
     CmdBuffer::Iter genIter(fCmdBuffer);
     while (genIter.next()) {
         if (Cmd::kDrawBatch_CmdType == genIter->type()) {
             DrawBatch* db = reinterpret_cast<DrawBatch*>(genIter.get());
             fBatchTarget.resetNumberOfDraws();
-            db->fBatch->generateGeometry(&fBatchTarget);
-            db->fBatch->setNumberOfDraws(fBatchTarget.numberOfDraws());
+            db->batch()->generateGeometry(&fBatchTarget);
+            db->batch()->setNumberOfDraws(fBatchTarget.numberOfDraws());
         }
     }
 
     fBatchTarget.preFlush();
 
     CmdBuffer::Iter iter(fCmdBuffer);
 
     while (iter.next()) {
         GrGpuTraceMarker newMarker("", -1);
         SkString traceString;
@@ skipping 57 matching lines @@
     gpu->clearStencilClip(fRect, fInsideClip, this->renderTarget());
 }
 
 void GrTargetCommands::CopySurface::execute(GrGpu* gpu) {
     gpu->copySurface(this->dst(), this->src(), fSrcRect, fDstPoint);
 }
 
 void GrTargetCommands::XferBarrier::execute(GrGpu* gpu) {
     gpu->xferBarrier(fRenderTarget.get(), fBarrierType);
 }