Roll Chrome into Mojo.

cc/layers/picture_layer.cc

Index: cc/layers/picture_layer.cc
diff --git a/cc/layers/picture_layer.cc b/cc/layers/picture_layer.cc
index 98e8dcb8e1ca619f9519eaa97a331f6927b4fe29..a55318eda6f273b981fb010fb3f484dbc23bd732 100644
--- a/cc/layers/picture_layer.cc
+++ b/cc/layers/picture_layer.cc
@@ -85,12 +85,11 @@ void PictureLayer::SetLayerTreeHost(LayerTreeHost* host) {
       if (host->settings().use_display_lists) {
         recording_source_.reset(new DisplayListRecordingSource);
       } else {
-        recording_source_.reset(new PicturePile);
+        recording_source_.reset(
+            new PicturePile(host->settings().minimum_contents_scale,
+                            host->settings().default_tile_grid_size));
       }
     }
-    recording_source_->SetMinContentsScale(
-        host->settings().minimum_contents_scale);
-    recording_source_->SetTileGridSize(host->settings().default_tile_grid_size);
     recording_source_->SetSlowdownRasterScaleFactor(
         host->debug_state().slow_down_raster_scale_factor);
   }