Non-SFI Mode: Build ipc/ library by PNaCl toolchain for nacl_helper_nonsfi.

ipc/ipc_channel_proxy.h

Index: ipc/ipc_channel_proxy.h
diff --git a/ipc/ipc_channel_proxy.h b/ipc/ipc_channel_proxy.h
index 00d5f42934317432503cb891c87dbb9d2358019f..4f02bb649c3c093702f4a67e8cca13228ef1edaa 100644
--- a/ipc/ipc_channel_proxy.h
+++ b/ipc/ipc_channel_proxy.h
@@ -119,11 +119,12 @@ class IPC_EXPORT ChannelProxy : public Sender, public base::NonThreadSafe {
   // Returns base::kNullProcessId if the peer is not connected yet.
   base::ProcessId GetPeerPID() const { return context_->peer_pid_; }
 
-#if defined(OS_POSIX) && !defined(OS_NACL)
+#if defined(OS_POSIX) && \
+    (!defined(OS_NACL) || defined(__native_client_nonsfi__))
   // Calls through to the underlying channel's methods.
   int GetClientFileDescriptor();
   int TakeClientFileDescriptor();
-#endif  // defined(OS_POSIX)
+#endif
 
  protected:
   class Context;