Support to remove passwords by date_synced timestamp.

chrome/browser/password_manager/password_store_mac.h

Index: chrome/browser/password_manager/password_store_mac.h
diff --git a/chrome/browser/password_manager/password_store_mac.h b/chrome/browser/password_manager/password_store_mac.h
index 87cc61b26d07172a22c48b825d1ad9780183757c..67eac1e3aa1ee0339c05ab49d645474f10c1a1c2 100644
--- a/chrome/browser/password_manager/password_store_mac.h
+++ b/chrome/browser/password_manager/password_store_mac.h
@@ -60,6 +60,9 @@ class PasswordStoreMac : public password_manager::PasswordStore {
   virtual password_manager::PasswordStoreChangeList
       RemoveLoginsCreatedBetweenImpl(const base::Time& delete_begin,
                                      const base::Time& delete_end) OVERRIDE;
+  virtual password_manager::PasswordStoreChangeList
+      RemoveLoginsSyncedBetweenImpl(const base::Time& delete_begin,

[vabr (Chromium), 2014/06/17 16:53:30]

nit: Given that base::Time contains just an int, you can pass by value here, as
you do for Gnome & KDE.

[vasilii, 2014/06/17 17:24:14]

Done.

+                                    const base::Time& delete_end) OVERRIDE;
   virtual void GetLoginsImpl(
       const autofill::PasswordForm& form,
       AuthorizationPromptPolicy prompt_policy,