Add unit test for vertex attribute count.

src/gpu/glsl/GrGLSLGeometryProcessor.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLSLGeometryProcessor_DEFINED
 #define GrGLSLGeometryProcessor_DEFINED
 
@@ skipping 12 matching lines @@
     void emitCode(EmitArgs&) override;
 
     // By default we use the identity matrix
     void setTransformData(const GrPrimitiveProcessor&,
                           const GrGLSLProgramDataManager& pdman,
                           int index,
                           const SkTArray<const GrCoordTransform*, true>& transforms) override {
         this->setTransformDataMatrix(SkMatrix::I(), pdman, index, transforms);
     }
 
+protected:
     // A helper which subclasses can use if needed
     template <class GeometryProcessor>
     void setTransformDataHelper(const GrPrimitiveProcessor& primProc,
                                 const GrGLSLProgramDataManager& pdman,
                                 int index,
                                 const SkTArray<const GrCoordTransform*, true>& transforms) {
         const GeometryProcessor& gp = primProc.cast<GeometryProcessor>();
         this->setTransformDataMatrix(gp.localMatrix(), pdman, index, transforms);
     }
 
-protected:
     // Emit a uniform matrix for each coord transform.
     void emitTransforms(GrGLSLVertexBuilder* vb,
                         GrGLSLVaryingHandler* varyingHandler,
                         GrGLSLUniformHandler* uniformHandler,
                         const GrShaderVar& posVar,
                         const char* localCoords,
                         const TransformsIn& tin,
                         TransformsOut* tout) {
         this->emitTransforms(vb, varyingHandler, uniformHandler,
                              posVar, localCoords, SkMatrix::I(), tin, tout);
@@ skipping 57 matching lines @@
             }
         }
     }
 
     virtual void onEmitCode(EmitArgs&, GrGPArgs*) = 0;
 
     typedef GrGLSLPrimitiveProcessor INHERITED;
 };
 
 #endif