diff -r 000000000000 -r 6474c204b198 toolkit/crashreporter/google-breakpad/src/third_party/glog/m4/namespaces.m4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/crashreporter/google-breakpad/src/third_party/glog/m4/namespaces.m4	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+# Checks whether the compiler implements namespaces
+AC_DEFUN([AC_CXX_NAMESPACES],
+ [AC_CACHE_CHECK(whether the compiler implements namespaces,
+                 ac_cv_cxx_namespaces,
+                 [AC_LANG_SAVE
+                  AC_LANG_CPLUSPLUS
+                  AC_TRY_COMPILE([namespace Outer {
+                                    namespace Inner { int i = 0; }}],
+                                 [using namespace Outer::Inner; return i;],
+                                 ac_cv_cxx_namespaces=yes,
+                                 ac_cv_cxx_namespaces=no)
+                  AC_LANG_RESTORE])
+  if test "$ac_cv_cxx_namespaces" = yes; then
+    AC_DEFINE(HAVE_NAMESPACES, 1, [define if the compiler implements namespaces])
+  fi])