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

components/autofill/browser/autofill_external_delegate.cc

Index: components/autofill/browser/autofill_external_delegate.cc
diff --git a/components/autofill/browser/autofill_external_delegate.cc b/components/autofill/browser/autofill_external_delegate.cc
index 95fc0cfd74500192a39b715dc7eb5f65b1341a08..6bca5619ec40ed323031ca5bb9a9bc82b7be5c3b 100644
--- a/components/autofill/browser/autofill_external_delegate.cc
+++ b/components/autofill/browser/autofill_external_delegate.cc
@@ -140,6 +140,7 @@ void AutofillExternalDelegate::OnSuggestionsReturned(
 
 void AutofillExternalDelegate::OnShowPasswordSuggestions(
     const std::vector<base::string16>& suggestions,
+    const std::vector<base::string16>& origins,
     const FormFieldData& field,
     const gfx::RectF& element_bounds) {
   autofill_query_field_ = field;
@@ -154,7 +155,7 @@ void AutofillExternalDelegate::OnShowPasswordSuggestions(
   std::vector<int> password_ids(suggestions.size(),
                                 WebAutofillClient::MenuItemIDPasswordEntry);
   autofill_manager_->delegate()->ShowAutofillPopup(
-      element_bounds_, suggestions, empty, empty, password_ids, GetWeakPtr());
+      element_bounds_, suggestions, origins, empty, password_ids, GetWeakPtr());

[Ilya Sherman, 2013/06/06 09:25:35]

Hmm.  Are the origins really just surfaced as labels in the UI?  That seems like
a relatively strange UI to me.

[nyquist, 2013/06/07 22:51:10]

Yes, that is the approved UI.
Also changed to |realms| here.

[Ilya Sherman, 2013/06/07 23:47:56]

Hrm, ok.  Approved by the Chromium UI leads?

[nyquist, 2013/06/11 03:36:01]

It has been approved for now by UI, but it has not gone through formal UI review
yet.

 }
 
 void AutofillExternalDelegate::SetCurrentDataListValues(