Add thunks for MojoGetRights(), etc.

mojo/public/platform/native/system_impl_private_thunks.h

Index: mojo/public/platform/native/system_impl_private_thunks.h
diff --git a/mojo/public/platform/native/system_impl_private_thunks.h b/mojo/public/platform/native/system_impl_private_thunks.h
index 2f8b24d1df44f4ce61eaabc0d2445bc54d9afe67..e29fc8e7eaaeab1ceb07ea9c7300df7bec5ab09e 100644
--- a/mojo/public/platform/native/system_impl_private_thunks.h
+++ b/mojo/public/platform/native/system_impl_private_thunks.h
@@ -34,6 +34,9 @@ struct MojoSystemImplThunksPrivate {
   size_t size;  // Should be set to sizeof(MojoExplicitThunksPrivate).
   MojoTimeTicks (*GetTimeTicksNow)(MojoSystemImpl system);
   MojoResult (*Close)(MojoSystemImpl system, MojoHandle handle);
+  MojoResult (*GetRights)(MojoSystemImpl system,
+                          MojoHandle handle,
+                          MojoHandleRights* rights);
   MojoResult (*Wait)(MojoSystemImpl system,
                      MojoHandle handle,
                      MojoHandleSignals signals,
@@ -153,6 +156,7 @@ inline MojoSystemImplThunksPrivate MojoMakeSystemImplThunksPrivate() {
       sizeof(MojoSystemImplThunksPrivate),
       MojoSystemImplGetTimeTicksNow,
       MojoSystemImplClose,
+      MojoSystemImplGetRights,
       MojoSystemImplWait,
       MojoSystemImplWaitMany,
       MojoSystemImplCreateMessagePipe,