Update mojo sdk to rev f6c8ec07c01deebc13178d516225fd12695c3dc2

mojo/nacl/mojo_syscall.h

Index: mojo/nacl/mojo_syscall.h
diff --git a/mojo/nacl/mojo_syscall.h b/mojo/nacl/mojo_syscall.h
index f195769a11d4745278fb7e982d1e8ff5ee6cde95..71822b58715a9d9a752ba80f0a1bbff667f331c7 100644
--- a/mojo/nacl/mojo_syscall.h
+++ b/mojo/nacl/mojo_syscall.h
@@ -5,6 +5,12 @@
 #ifndef MOJO_NACL_MOJO_SYSCALL_H_
 #define MOJO_NACL_MOJO_SYSCALL_H_
 
+// Injects a NaClDesc for Mojo support. This provides the implementation of the
+// Mojo system API outside the NaCl sandbox.
 void InjectMojo(struct NaClApp* nap);
 
+// Injects a "disabled" NaClDesc for Mojo support. This is to make debugging
+// more straightforward in the case where Mojo is not enabled for NaCl plugins.
+void InjectDisabledMojo(struct NaClApp* nap);
+
 #endif // MOJO_NACL_MOJO_SYSCALL_H_