Clang/mac: Get unit_tests built.

chrome/browser/autofill/form_structure_unittest.cc

Index: chrome/browser/autofill/form_structure_unittest.cc
diff --git a/chrome/browser/autofill/form_structure_unittest.cc b/chrome/browser/autofill/form_structure_unittest.cc
index 0a021987e23d9d4c8b92d20fb02d38afee36f467..07dfae0cd2acbbd0ad842f1412a0114eed4a35a7 100644
--- a/chrome/browser/autofill/form_structure_unittest.cc
+++ b/chrome/browser/autofill/form_structure_unittest.cc
@@ -15,8 +15,7 @@
 using webkit_glue::FormData;
 using WebKit::WebInputElement;
 
-namespace {
-
+namespace webkit_glue {
 std::ostream& operator<<(std::ostream& os, const FormData& form) {
   os << UTF16ToUTF8(form.name)
      << " "
@@ -36,6 +35,9 @@ std::ostream& operator<<(std::ostream& os, const FormData& form) {
 
   return os;
 }
+}
+
+namespace {
 
 TEST(FormStructureTest, FieldCount) {
   FormData form;