Create GrOptDrawState directly in the cmd buffer in GrIODB.

src/gpu/GrOptDrawState.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrOptDrawState_DEFINED
 #define GrOptDrawState_DEFINED
 
 #include "GrColor.h"
 #include "GrGpu.h"
 #include "GrPendingFragmentStage.h"
 #include "GrProgramDesc.h"
 #include "GrStencil.h"
 #include "GrTypesPriv.h"
 #include "SkMatrix.h"
 #include "SkRefCnt.h"
 
 class GrDeviceCoordTexture;
 class GrDrawState;
 
 /**
  * Class that holds an optimized version of a GrDrawState. It is meant to be an immutable class,
  * and contains all data needed to set the state for a gpu draw.
  */
-class GrOptDrawState : public SkRefCnt {
+class GrOptDrawState {
 public:
     SK_DECLARE_INST_COUNT(GrOptDrawState)
 
     typedef GrClipMaskManager::ScissorState ScissorState;
 
     GrOptDrawState(const GrDrawState& drawState, GrGpu*, const ScissorState&,
                    const GrDeviceCoordTexture* dstCopy, GrGpu::DrawType);
 
     bool operator== (const GrOptDrawState& that) const;
     bool operator!= (const GrOptDrawState& that) const { return !(*this == that); }
@@ skipping 235 matching lines @@
     int                                 fNumColorStages;
 
     SkAutoSTArray<4, GrVertexAttrib> fOptVA;
 
     GrProgramDesc fDesc;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif