Enable Update Password UI on iOS behind a flag

ios/chrome/browser/passwords/ios_chrome_password_manager_client.mm

Index: ios/chrome/browser/passwords/ios_chrome_password_manager_client.mm
diff --git a/ios/chrome/browser/passwords/ios_chrome_password_manager_client.mm b/ios/chrome/browser/passwords/ios_chrome_password_manager_client.mm
index f24d098b23fa96cebb9cc813118274b4803b46b4..279b2a8dde7a3233e8e36309ab01cccfad8165a1 100644
--- a/ios/chrome/browser/passwords/ios_chrome_password_manager_client.mm
+++ b/ios/chrome/browser/passwords/ios_chrome_password_manager_client.mm
@@ -15,6 +15,7 @@
 #include "components/password_manager/core/common/password_manager_pref_names.h"
 #include "components/signin/core/browser/signin_manager_base.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
+#include "ios/chrome/browser/experimental_flags.h"
 #include "ios/chrome/browser/passwords/ios_chrome_password_store_factory.h"
 #include "ios/chrome/browser/signin/signin_manager_factory.h"
 #include "ios/chrome/browser/sync/ios_chrome_profile_sync_service_factory.h"
@@ -74,7 +75,15 @@ bool IOSChromePasswordManagerClient::PromptUserToSaveOrUpdatePassword(
     bool update_password) {
   if (form_to_save->IsBlacklisted())
     return false;
-  [delegate_ showSavePasswordInfoBar:std::move(form_to_save)];
+
+  if (update_password) {

[sdefresne, 2016/07/05 16:51:18]

I think this should be:

if (update_password && experimental_flags::IsUpdatePasswordUIEnabled()) {
  [delegate_ showUpdatePasswordInfoBar:std::move(form_to_save)];
} else {
  [delegate_ showPasswordInfoBar:std::move(form_to_save)];
}

[Jackie Quinn, 2016/07/06 07:14:27]

Done.

+    if (experimental_flags::IsUpdatePasswordUIEnabled()) {
+      [delegate_ showUpdatePasswordInfoBar:std::move(form_to_save)];
+    }
+  } else {
+    [delegate_ showSavePasswordInfoBar:std::move(form_to_save)];
+  }
+
   return true;
 }