iOS: Mark HTTP pages with password fields with an omnibox icon.

ios/web/web_state/web_state_impl.mm

Index: ios/web/web_state/web_state_impl.mm
diff --git a/ios/web/web_state/web_state_impl.mm b/ios/web/web_state/web_state_impl.mm
index 2be723464c9b10db360e5099e61e6be65c25390e..399760f0c77d34d8ef45fe09b96a12f7615ec7bb 100644
--- a/ios/web/web_state/web_state_impl.mm
+++ b/ios/web/web_state/web_state_impl.mm
@@ -288,6 +288,10 @@ void WebStateImpl::OnSignInFailed(int request_id, const GURL& source_url) {
     observer.SignInFailed(request_id, source_url);
 }
 
+void WebStateImpl::OnPasswordInputShownOnHttp() {

[Eugene But (OOO till 7-30), 2016/12/02 01:53:12]

nit: Could you please try keeping the same order for this method as in the
header.

[lgarron, 2016/12/06 01:38:36]

Whoops, fixed.

+  [web_controller_ didShowPasswordInputOnHTTP];
+}
+
 void WebStateImpl::OnDocumentSubmitted(const std::string& form_name,
                                        bool user_initiated) {
   for (auto& observer : observers_)