Various changes to make Mojo work under NaCl non-sfi.

ipc/mojo/ipc_mojo_bootstrap.cc

Index: ipc/mojo/ipc_mojo_bootstrap.cc
diff --git a/ipc/mojo/ipc_mojo_bootstrap.cc b/ipc/mojo/ipc_mojo_bootstrap.cc
index 434f002744a5551fb719edb00ee013cadf3b9205..596925ee09686fc523752041038e12c96c16aa48 100644
--- a/ipc/mojo/ipc_mojo_bootstrap.cc
+++ b/ipc/mojo/ipc_mojo_bootstrap.cc
@@ -154,7 +154,11 @@ base::ProcessId MojoBootstrap::GetSelfPID() const {
   if (int global_pid = Channel::GetGlobalPid())
     return global_pid;
 #endif  // OS_LINUX
+#if defined(OS_NACL)
+  return -1;
+#else
   return base::GetCurrentProcId();
+#endif  // defined(OS_NACL)
 }
 
 void MojoBootstrap::Fail() {