Place r5997 (make arcto's convex) behind a compiler flag to delay day of reckoning with Webkit baselines



git-svn-id: http://skia.googlecode.com/svn/trunk@6012 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/PathBench.cpp b/bench/PathBench.cpp
index 3b3c52d..ac324a9 100644
--- a/bench/PathBench.cpp
+++ b/bench/PathBench.cpp
@@ -729,7 +729,9 @@
         add_corner_arc(path, r, xCorner, yCorner, 90);
         add_corner_arc(path, r, xCorner, yCorner, 180);
 
+#ifdef SK_REDEFINE_ROOT2OVER2_TO_MAKE_ARCTOS_CONVEX
         SkASSERT(path->isConvex());
+#endif
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {