cc: Do the math for a tile's content rect in layer space once.

cc/tiles/tile_manager.h

Index: cc/tiles/tile_manager.h
diff --git a/cc/tiles/tile_manager.h b/cc/tiles/tile_manager.h
index 32b68d576d24b6cb3979443ab94d9793c4376a09..54263974b7d06afc90d7ed31ea8f0e6c76facb8d 100644
--- a/cc/tiles/tile_manager.h
+++ b/cc/tiles/tile_manager.h
@@ -133,9 +133,7 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient {
   // date draw information.
   void Flush();
 
-  ScopedTilePtr CreateTile(const gfx::Size& desired_texture_size,
-                           const gfx::Rect& content_rect,
-                           float contents_scale,
+  ScopedTilePtr CreateTile(const Tile::CreateInfo& info,
                            int layer_id,
                            int source_frame_number,
                            int flags);