[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 4554844815ef29589fb0529c420ffd38126e5735..80ae7618771a39b3be59af3ec5a7a9fc5fe1861c 100644
--- a/components/autofill/browser/autofill_external_delegate_unittest.cc
+++ b/components/autofill/browser/autofill_external_delegate_unittest.cc
@@ -267,8 +267,11 @@ TEST_F(AutofillExternalDelegateUnitTest,
 // suggestions.
 TEST_F(AutofillExternalDelegateUnitTest, ExternalDelegatePasswordSuggestions) {
   static const base::string16 kUsername = ASCIIToUTF16("username");
+  static const base::string16 kSignonRealm = ASCIIToUTF16("signon_realm");

[palmer, 2013/06/11 18:55:45]

Is this the file to test specific fuzzy matches that should and should not
match? I'd really like to see some tests for matches that should (functionality)
and should not (security) work.

[nyquist, 2013/06/11 23:54:43]

I have now added these tests at the lowest level, namely in
login_database_unittest.cc

   std::vector<base::string16> suggestions;
   suggestions.push_back(kUsername);
+  std::vector<base::string16> realms;
+  realms.push_back(kSignonRealm);
 
   FormFieldData field;
   field.is_focusable = true;
@@ -291,6 +294,7 @@ TEST_F(AutofillExternalDelegateUnitTest, ExternalDelegatePasswordSuggestions) {
                   _));
 
   external_delegate_->OnShowPasswordSuggestions(suggestions,
+                                                realms,
                                                 field,
                                                 element_bounds);