Fix CSS reference filters with negative transformed children.

cc/ipc/quads.mojom

Index: cc/ipc/quads.mojom
diff --git a/cc/ipc/quads.mojom b/cc/ipc/quads.mojom
index 5de6917e91f3301ea1969b6333b93f391b2d74a1..a7444add392f5cace4ae008cbd9c13e512df7944 100644
--- a/cc/ipc/quads.mojom
+++ b/cc/ipc/quads.mojom
@@ -36,6 +36,11 @@ struct RenderPassQuadState {
   // content-to-target-space scale, and device pixel ratio.
   gfx.mojom.Vector2dF filters_scale;
 
+  // The offset from the bounds of the root layer to the origin of the
+  // original primitive. This used to correctly position crop rects, lights,
+  // etc.
+  gfx.mojom.PointF filters_origin;
+
   // Post-processing filters, applied to the pixels showing through the
   // background of the render pass, from behind it.
   cc.mojom.FilterOperations background_filters;