create GrInOrderCommandBuilder

src/gpu/GrCommandBuilder.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 GrCommandBuilder_DEFINED
 #define GrCommandBuilder_DEFINED
 
@@ skipping 16 matching lines @@
 
     virtual ~GrCommandBuilder() {}
 
     void reset() { fCommands.reset(); }
     void flush(GrInOrderDrawBuffer* iodb) { fCommands.flush(iodb); }
 
     virtual Cmd* recordClearStencilClip(const SkIRect& rect,
                                         bool insideClip,
                                         GrRenderTarget* renderTarget);
     virtual Cmd* recordDiscard(GrRenderTarget*);
-    virtual Cmd* recordDrawBatch(State*, GrBatch*);
+    virtual Cmd* recordDrawBatch(State*, GrBatch*) = 0;
     virtual Cmd* recordStencilPath(const GrPipelineBuilder&,
                                    const GrPathProcessor*,
                                    const GrPath*,
                                    const GrScissorState&,
-                                   const GrStencilSettings&);
+                                   const GrStencilSettings&) = 0;
     virtual Cmd* recordDrawPath(State*,
                                 const GrPathProcessor*,
                                 const GrPath*,
-                                const GrStencilSettings&);
+                                const GrStencilSettings&) = 0;
     virtual Cmd* recordDrawPaths(State*,
                                  GrInOrderDrawBuffer*,
                                  const GrPathProcessor*,
                                  const GrPathRange*,
                                  const void*,
                                  GrDrawTarget::PathIndexType,
                                  const float transformValues[],
                                  GrDrawTarget::PathTransformType ,
                                  int,
                                  const GrStencilSettings&,
-                                 const GrDrawTarget::PipelineInfo&);
+                                 const GrDrawTarget::PipelineInfo&) = 0;
     virtual Cmd* recordClear(const SkIRect* rect,
                              GrColor,
                              bool canIgnoreRect,
                              GrRenderTarget*);
     virtual Cmd* recordCopySurface(GrSurface* dst,
                                    GrSurface* src,
                                    const SkIRect& srcRect,
                                    const SkIPoint& dstPoint);
     virtual Cmd* recordXferBarrierIfNecessary(const GrPipeline&, const GrDrawTargetCaps&);
 
-private:
+protected:
     typedef GrTargetCommands::DrawBatch DrawBatch;
     typedef GrTargetCommands::StencilPath StencilPath;
     typedef GrTargetCommands::DrawPath DrawPath;
     typedef GrTargetCommands::DrawPaths DrawPaths;
     typedef GrTargetCommands::Clear Clear;
     typedef GrTargetCommands::ClearStencilClip ClearStencilClip;
     typedef GrTargetCommands::CopySurface CopySurface;
     typedef GrTargetCommands::XferBarrier XferBarrier;
 
     GrTargetCommands::CmdBuffer* cmdBuffer() { return fCommands.cmdBuffer(); }
     GrBatchTarget* batchTarget() { return fCommands.batchTarget(); }
 
+private:
     GrTargetCommands fCommands;
 
 };
 
 #endif