[autofill] Add support for PSL domain matching for password autofill.

components/autofill/browser/autofill_external_delegate_unittest.cc

Index: components/autofill/browser/autofill_external_delegate_unittest.cc
diff --git a/components/autofill/browser/autofill_external_delegate_unittest.cc b/components/autofill/browser/autofill_external_delegate_unittest.cc
index 96ae2b9270ccd9dec82db4da646a21d6e6ed1e88..c1c5cebff89a8f5f5cddf6eee8ff9db4404f0332 100644
--- a/components/autofill/browser/autofill_external_delegate_unittest.cc
+++ b/components/autofill/browser/autofill_external_delegate_unittest.cc
@@ -300,8 +300,11 @@ TEST_F(AutofillExternalDelegateUnitTest,
 // suggestions.
 TEST_F(AutofillExternalDelegateUnitTest, ExternalDelegatePasswordSuggestions) {
   static const base::string16 kUsername = ASCIIToUTF16("username");
+  static const base::string16 kSignonRealm = ASCIIToUTF16("http://foo.com/");
   std::vector<base::string16> suggestions;
   suggestions.push_back(kUsername);
+  std::vector<base::string16> realms;
+  realms.push_back(kSignonRealm);
 
   FormFieldData field;
   field.is_focusable = true;
@@ -324,6 +327,7 @@ TEST_F(AutofillExternalDelegateUnitTest, ExternalDelegatePasswordSuggestions) {
                   _));
 
   external_delegate_->OnShowPasswordSuggestions(suggestions,
+                                                realms,
                                                 field,
                                                 element_bounds);