Avoid blocking the PNaCl translator processes when chrome NaCl GDB flag is on.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 17c4aa0b5dfe835d0abf18f5f09aac797b07bc32..edae4f4cb001b15b5a8d8f1febf5ad9fc64045fd 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -190,6 +190,11 @@ const Experiment::Choice kNaClDebugMaskChoices[] = {
   // Secure shell can be used on ChromeOS for forwarding the TCP port opened by
   // debug stub to a remote machine. Since secure shell uses NaCl, we provide
   // an option to switch off its debugging.
+  // The PNaCl translator is a NaCl module that runs before the user's
+  // actual NaCl module, so we want to be able to switch off debugging that.
+  { IDS_NACL_DEBUG_MASK_CHOICE_EXCLUDE_UTILS_PNACL,
+      switches::kNaClDebugMask,
+      "!*://*/*ssh_client.nmf,chrome://pnacl-translator/*" },
   { IDS_NACL_DEBUG_MASK_CHOICE_EXCLUDE_UTILS,
       switches::kNaClDebugMask, "!*://*/*ssh_client.nmf" },
   { IDS_NACL_DEBUG_MASK_CHOICE_INCLUDE_DEBUG,