Creating a pexe content handler to translate and run pexes.

mojo/nacl/nonsfi/nexe_launcher_nonsfi.cc

Index: mojo/nacl/nonsfi/nexe_launcher_nonsfi.cc
diff --git a/mojo/nacl/nonsfi/nexe_launcher_nonsfi.cc b/mojo/nacl/nonsfi/nexe_launcher_nonsfi.cc
index c8edb8b0a959c55c67f9f08b406949a7995d14f8..778ee73942e0d030d372c1df3a3b0116372e4985 100644
--- a/mojo/nacl/nonsfi/nexe_launcher_nonsfi.cc
+++ b/mojo/nacl/nonsfi/nexe_launcher_nonsfi.cc
@@ -12,10 +12,15 @@
 
 namespace nacl {
 
-void MojoLaunchNexeNonsfi(int nexe_fd, MojoHandle initial_handle) {
+void MojoLaunchNexeNonsfi(int nexe_fd, MojoHandle initial_handle,
+                          bool enable_translate_irt) {
   // Run -- also, closes the nexe_fd, removing the temp file.
   uintptr_t entry = NaClLoadElfFile(nexe_fd);
 
+  // Enable the translation section of the IRT, if requested.
+  if (enable_translate_irt) {
+    MojoPnaclTranslatorEnable();
+  }
   MojoSetInitialHandle(initial_handle);
   int argc = 1;
   char* argvp = const_cast<char*>("NaClMain");