cc: add rasterize time to continuous painting graph data in impl-side-painting

cc/rendering_stats.h

Index: cc/rendering_stats.h
diff --git a/cc/rendering_stats.h b/cc/rendering_stats.h
index f47c71074fbcc73c3545bfb1df3479cabc0e4cab..193c98511919e8c0b9e3a6fc1be347343fde23bc 100644
--- a/cc/rendering_stats.h
+++ b/cc/rendering_stats.h
@@ -18,6 +18,7 @@ struct CC_EXPORT RenderingStats {
     int64 droppedFrameCount;
     base::TimeDelta totalPaintTime;
     base::TimeDelta totalRasterizeTime;
+    base::TimeDelta totalRasterizeTimeForNowBinsOnPendingTree;
     base::TimeDelta totalCommitTime;
     int64 totalCommitCount;
     int64 totalPixelsPainted;