Split GrDrawBatch and GrVertexBatch into their own files

src/gpu/GrTargetCommands.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTargetCommands_DEFINED
 #define GrTargetCommands_DEFINED
 
 #include "GrBatchTarget.h"
 #include "GrDrawTarget.h"
 #include "GrGpu.h"
 #include "GrPath.h"
 #include "GrPendingProgramElement.h"
 #include "GrRenderTarget.h"
 #include "GrTRecorder.h"
 #include "SkRect.h"
 #include "SkTypes.h"
 
-#include "batches/GrBatch.h"
+#include "batches/GrDrawBatch.h"
 
 class GrBufferedDrawTarget;
 
 // TODO: Convert all commands into GrBatch and remove this class.
 class GrTargetCommands : ::SkNoncopyable {
 public:
     GrTargetCommands(GrGpu* gpu)
         : fCmdBuffer(kCmdBufferInitialSizeInBytes)
         , fBatchTarget(gpu) {
     }
@@ skipping 222 matching lines @@
 
     CmdBuffer* cmdBuffer() { return &fCmdBuffer; }
     GrBatchTarget* batchTarget() { return &fBatchTarget; }
 
     CmdBuffer                           fCmdBuffer;
     GrBatchTarget                       fBatchTarget;
 };
 
 #endif