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

chrome/browser/about_flags.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/about_flags.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 172 matching lines @@
     switches::kOverscrollHistoryNavigation,
     "2" }
 };
 #endif
 
 const Experiment::Choice kNaClDebugMaskChoices[] = {
   { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
   // 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,
       switches::kNaClDebugMask, "*://*/*debug.nmf" }
 };
 
 const Experiment::Choice kImplSidePaintingChoices[] = {
   { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
   { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
     cc::switches::kEnableImplSidePainting, ""},
@@ skipping 2244 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags