diff --git a/gfx/layers/ipc/LayersSurfaces.ipdlh b/gfx/layers/ipc/LayersSurfaces.ipdlh
--- a/gfx/layers/ipc/LayersSurfaces.ipdlh
+++ b/gfx/layers/ipc/LayersSurfaces.ipdlh
@@ -57,10 +57,12 @@
   uint64_t[] modifier;
   uint32_t flags;
   FileDescriptor[] fds;
   uint32_t[] width;
   uint32_t[] height;
+  uint32_t[] widthAligned;
+  uint32_t[] heightAligned;
   uint32_t[] format;
   uint32_t[] strides;
   uint32_t[] offsets;
   YUVColorSpace yUVColorSpace;
   ColorRange colorRange;