add option to supress prints on context

src/gpu/gl/GrGLProgramDataManager.h

Index: src/gpu/gl/GrGLProgramDataManager.h
diff --git a/src/gpu/gl/GrGLProgramDataManager.h b/src/gpu/gl/GrGLProgramDataManager.h
index 5ee1a85557e14a9bbc12a903f6ca64c04d67579e..f1543135165ec19162f28cb3e7b555efc1bd5908 100644
--- a/src/gpu/gl/GrGLProgramDataManager.h
+++ b/src/gpu/gl/GrGLProgramDataManager.h
@@ -106,11 +106,7 @@ private:
         );
     };
 
-#ifdef SK_DEBUG
-    void printUnused(const Uniform&) const;
-#else
-    void printUnused(const Uniform&) const {}
-#endif
+    SkDEBUGCODE(void printUnused(const Uniform&) const;)
 
     SkTArray<Uniform, true> fUniforms;
     GrGLGpu* fGpu;