cc: Simplify picture layer tiling update tile priorities.

cc/resources/picture_layer_tiling_set.h

Index: cc/resources/picture_layer_tiling_set.h
diff --git a/cc/resources/picture_layer_tiling_set.h b/cc/resources/picture_layer_tiling_set.h
index bff3bd67208347d3fd58481e6de8eeba793f8a4f..a37ce8cdcba4b40e7ee11e6a15d11bcc1b70aa09 100644
--- a/cc/resources/picture_layer_tiling_set.h
+++ b/cc/resources/picture_layer_tiling_set.h
@@ -56,15 +56,9 @@ class CC_EXPORT PictureLayerTilingSet {
 
   void UpdateTilePriorities(
       WhichTree tree,
-      const gfx::Size& device_viewport,
       const gfx::Rect& viewport_in_content_space,
       const gfx::Rect& visible_content_rect,
-      const gfx::Size& last_layer_bounds,
-      const gfx::Size& current_layer_bounds,
-      float last_layer_contents_scale,
-      float current_layer_contents_scale,
-      const gfx::Transform& last_screen_transform,
-      const gfx::Transform& current_screen_transform,
+      float layer_contents_scale,
       double current_frame_time_in_seconds,
       size_t max_tiles_for_interest_area);