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

cc/tile_manager.cc

Index: cc/tile_manager.cc
diff --git a/cc/tile_manager.cc b/cc/tile_manager.cc
index fef3c8d7fd336dad8fea321c748788ded9b189ed..19779e408a630b681a26db7459abe4df397d8658 100644
--- a/cc/tile_manager.cc
+++ b/cc/tile_manager.cc
@@ -935,6 +935,9 @@ void TileManager::PerformRaster(uint8* buffer,
     base::TimeTicks end_time = base::TimeTicks::Now();
     base::TimeDelta duration = end_time - begin_time;
     stats->totalRasterizeTime += duration;
+    if (raster_task_metadata.is_tile_in_pending_tree_now_bin)
+      stats->totalRasterizeTimeForNowBinsOnPendingTree += duration;
+
     UMA_HISTOGRAM_CUSTOM_COUNTS("Renderer4.PictureRasterTimeMS",
                                 duration.InMilliseconds(),
                                 0,