Unregister with push service and SW database when permission is lost.

chrome/browser/services/gcm/push_messaging_application_id.cc

Index: chrome/browser/services/gcm/push_messaging_application_id.cc
diff --git a/chrome/browser/services/gcm/push_messaging_application_id.cc b/chrome/browser/services/gcm/push_messaging_application_id.cc
index b246b0088ea87d6c0c3c9a5ed73ea1e82953a324..a0830ad7586b6814bcf1edea58ce6fcec4da8b7f 100644
--- a/chrome/browser/services/gcm/push_messaging_application_id.cc
+++ b/chrome/browser/services/gcm/push_messaging_application_id.cc
@@ -91,6 +91,21 @@ PushMessagingApplicationId PushMessagingApplicationId::Get(
   return PushMessagingApplicationId();
 }
 
+// static
+std::vector<PushMessagingApplicationId> PushMessagingApplicationId::GetAll(
+    Profile* profile) {
+  std::vector<PushMessagingApplicationId> result;
+
+  const base::DictionaryValue* map =
+      profile->GetPrefs()->GetDictionary(prefs::kPushMessagingApplicationIdMap);
+  for (auto it = base::DictionaryValue::Iterator(*map); !it.IsAtEnd();
+       it.Advance()) {
+    result.push_back(Get(profile, it.key()));
+  }
+
+  return result;
+}
+
 void PushMessagingApplicationId::PersistToDisk(Profile* profile) const {
   DCHECK(IsValid());