bench_pictures will now output the number of tiles for a tiled benchmark.

Review URL: https://codereview.appspot.com/6387044

git-svn-id: http://skia.googlecode.com/svn/trunk@4507 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/bench_pictures_main.cpp b/tools/bench_pictures_main.cpp
index 0674598..b2a7b7d 100644
--- a/tools/bench_pictures_main.cpp
+++ b/tools/bench_pictures_main.cpp
@@ -141,7 +141,7 @@
         delete tiles[i].fBitmap;
     }
 
-    printf("tile%ix%i: cmsecs = %6.2f\n", options.fTileWidth,
+    printf("%i_tiles_%ix%i: cmsecs = %6.2f\n", tiles.count(), options.fTileWidth,
            options.fTileHeight, timer.fWall / options.fRepeats);
 }