Remove extraneous newline.

TBR=mtklein@google.com

Review URL: https://codereview.chromium.org/878333004
diff --git a/gm/gm.h b/gm/gm.h
index 211e051..e6c71a3 100644
--- a/gm/gm.h
+++ b/gm/gm.h
@@ -94,8 +94,7 @@
 
     protected:
         /** draws a standard message that the GM is only intended to be used with the GPU.*/
-        void drawGpuOnlyMessage(SkCanvas* 
-                                );
+        void drawGpuOnlyMessage(SkCanvas*);
         virtual void onOnceBeforeDraw() {}
         virtual void onDraw(SkCanvas*) = 0;
         virtual void onDrawBackground(SkCanvas*);