Split GrDrawBatch and GrVertexBatch into their own files

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"
 
+#include "batches/GrDrawBatch.h"
+#include "batches/GrVertexBatch.h"
+
 GrBATCH_SPEW(int32_t GrTargetCommands::Cmd::gUniqueID = 0;)
 
 void GrTargetCommands::reset() {
     fCmdBuffer.reset();
     fBatchTarget.reset();
 }
 
 void GrTargetCommands::flush(GrBufferedDrawTarget* bufferedDrawTarget) {
     GrBATCH_INFO("Flushing\n");
     if (fCmdBuffer.empty()) {
@@ skipping 72 matching lines @@
     }
 }
 
 void GrTargetCommands::ClearStencilClip::execute(GrGpu* gpu) {
     gpu->clearStencilClip(fRect, fInsideClip, this->renderTarget());
 }
 
 void GrTargetCommands::CopySurface::execute(GrGpu* gpu) {
     gpu->copySurface(this->dst(), this->src(), fSrcRect, fDstPoint);
 }