Make helper function on GrGLSLProgramDataManager non virtual

src/gpu/glsl/GrGLSLProgramDataManager.h

Index: src/gpu/glsl/GrGLSLProgramDataManager.h
diff --git a/src/gpu/glsl/GrGLSLProgramDataManager.h b/src/gpu/glsl/GrGLSLProgramDataManager.h
index 1a8f6391aac0566b82c721a46a7e09dc8b89943d..b059d4665fd3c1e345ed75d8507975e295e62ae2 100644
--- a/src/gpu/glsl/GrGLSLProgramDataManager.h
+++ b/src/gpu/glsl/GrGLSLProgramDataManager.h
@@ -62,7 +62,7 @@ public:
     virtual void setMatrix4fv(UniformHandle, int arrayCount, const float matrices[]) const = 0;
 
     // convenience method for uploading a SkMatrix to a 3x3 matrix uniform
-    virtual void setSkMatrix(UniformHandle, const SkMatrix&) const = 0;
+    void setSkMatrix(UniformHandle, const SkMatrix&) const;
 
     // for nvpr only
     typedef ShaderResourceHandle VaryingHandle;