Have PNaCl use debug pexe URL instead of stripped pexe w/ kEnableNaClDebug

components/nacl/renderer/ppb_nacl_private_impl.cc

Index: components/nacl/renderer/ppb_nacl_private_impl.cc
diff --git a/components/nacl/renderer/ppb_nacl_private_impl.cc b/components/nacl/renderer/ppb_nacl_private_impl.cc
index 0c9eeb5ef31306ed0f65d3be6b8985f0803cdb71..4f76bfd78ae9ec9198388edb258c58c42258abf0 100644
--- a/components/nacl/renderer/ppb_nacl_private_impl.cc
+++ b/components/nacl/renderer/ppb_nacl_private_impl.cc
@@ -12,6 +12,7 @@
 #include "base/metrics/histogram.h"
 #include "base/rand_util.h"
 #include "components/nacl/common/nacl_host_messages.h"
+#include "components/nacl/common/nacl_switches.h"
 #include "components/nacl/common/nacl_types.h"
 #include "components/nacl/renderer/pnacl_translation_resource_host.h"
 #include "content/public/common/content_client.h"
@@ -506,6 +507,11 @@ void ReportLoadError(PP_Instance instance,
   HistogramEnumerate(uma_name, error, PP_NACL_ERROR_MAX);
 }
 
+PP_Bool NaClDebugStubEnabled() {
+  return PP_FromBool(CommandLine::ForCurrentProcess()->HasSwitch(
+                         switches::kEnableNaClDebug));
+}
+
 const PPB_NaCl_Private nacl_interface = {
   &LaunchSelLdr,
   &StartPpapiProxy,
@@ -520,7 +526,8 @@ const PPB_NaCl_Private nacl_interface = {
   &OpenNaClExecutable,
   &DispatchEvent,
   &SetReadOnlyProperty,
-  &ReportLoadError
+  &ReportLoadError,
+  &NaClDebugStubEnabled
 };
 
 }  // namespace