Port bug 1041886 - Separate Linux sandbox code into its own shared library. rs=port-by-build-system-peer. bustage fix for CLOSED TREE

mail/installer/package-manifest.in

@@ -692,6 +692,10 @@
 ; For process sandboxing
 #if defined(XP_WIN)
 @BINPATH@/@DLL_PREFIX@sandboxbroker@DLL_SUFFIX@
+#elif defined(XP_LINUX)
+#if defined(MOZ_CONTENT_SANDBOX) || defined(MOZ_GMP_SANDBOX)
+@BINPATH@/@DLL_PREFIX@mozsandbox@DLL_SUFFIX@
+#endif
 #endif
 
 ; for Solaris SPARC