contacts: Don't save deleted contacts to disk.

chrome/browser/chromeos/contacts/contact_map.cc

Index: chrome/browser/chromeos/contacts/contact_map.cc
diff --git a/chrome/browser/chromeos/contacts/contact_map.cc b/chrome/browser/chromeos/contacts/contact_map.cc
index b24fbc0aeec05525fd41877e36bc05da128d32c1..f02aef4244ce009523a0be32b1e1ae544a0986a0 100644
--- a/chrome/browser/chromeos/contacts/contact_map.cc
+++ b/chrome/browser/chromeos/contacts/contact_map.cc
@@ -17,6 +17,15 @@ const Contact* ContactMap::Find(const std::string& contact_id) const {
   return (it != contacts_.end()) ? it->second : NULL;
 }
 
+void ContactMap::Erase(const std::string& contact_id) {
+  Map::iterator it = contacts_.find(contact_id);
+  if (it == contacts_.end())
+    return;
+
+  delete it->second;
+  contacts_.erase(it);
+}
+
 void ContactMap::Clear() {
   STLDeleteValues(&contacts_);
 }
@@ -50,18 +59,4 @@ void ContactMap::Merge(scoped_ptr<ScopedVector<Contact> > updated_contacts,
   updated_contacts->weak_clear();
 }
 
-base::Time ContactMap::GetMaxUpdateTime() const {
-  base::Time max_update_time;
-  for (const_iterator it = begin(); it != end(); ++it) {
-    const Contact* contact = it->second;
-    const base::Time update_time =
-        base::Time::FromInternalValue(contact->update_time());
-    if (!update_time.is_null() &&
-        (max_update_time.is_null() || max_update_time < update_time)) {
-      max_update_time = update_time;
-    }
-  }
-  return max_update_time;
-}
-
 }  // namespace contacts