add --writeChecksumBasedFilenames flag to render_pictures

tools/PictureBenchmark.cpp

Index: tools/PictureBenchmark.cpp
diff --git a/tools/PictureBenchmark.cpp b/tools/PictureBenchmark.cpp
index 6d8cada09e38e163e54e7b5cc878dae82067efe6..69b8fbb2d35f6a4ee695df8c577eff30f3bea053 100644
--- a/tools/PictureBenchmark.cpp
+++ b/tools/PictureBenchmark.cpp
@@ -73,7 +73,7 @@ void PictureBenchmark::run(SkPicture* pict) {
         return;
     }
 
-    fRenderer->init(pict);
+    fRenderer->init(pict, SkString(), SkString(), false);
 
     // We throw this away to remove first time effects (such as paging in this program)
     fRenderer->setup();