[Invalidations] Add GetInvalidatorState() to Invalidator{,Frontend}

sync/tools/sync_listen_notifications.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cstddef>
 #include <cstdio>
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/base64.h"
@@ skipping 36 matching lines @@
 const char kTrySslTcpFirstSwitch[] = "try-ssltcp-first";
 const char kAllowInsecureConnectionSwitch[] = "allow-insecure-connection";
 const char kNotificationMethodSwitch[] = "notification-method";
 
 // Class to print received notifications events.
 class NotificationPrinter : public InvalidationHandler {
  public:
   NotificationPrinter() {}
   virtual ~NotificationPrinter() {}
 
-  virtual void OnNotificationsEnabled() OVERRIDE {
-    LOG(INFO) << "Notifications enabled";
+  virtual void OnInvalidatorStateChange(InvalidatorState state) OVERRIDE {
+    LOG(INFO) << "Invalidator state changed to "
+              << InvalidatorStateToString(state);
   }
 
-  virtual void OnNotificationsDisabled(
-      NotificationsDisabledReason reason) OVERRIDE {
-    LOG(INFO) << "Notifications disabled with reason "
-              << NotificationsDisabledReasonToString(reason);
-  }
-
-  virtual void OnIncomingNotification(
+  virtual void OnIncomingInvalidation(
       const ObjectIdStateMap& id_state_map,
-      IncomingNotificationSource source) OVERRIDE {
+      IncomingInvalidationSource source) OVERRIDE {
     const ModelTypeStateMap& type_state_map =
         ObjectIdStateMapToModelTypeStateMap(id_state_map);
     for (ModelTypeStateMap::const_iterator it = type_state_map.begin();
          it != type_state_map.end(); ++it) {
-      LOG(INFO) << (source == REMOTE_NOTIFICATION ? "Remote" : "Local")
-                << " Notification: type = "
+      LOG(INFO) << (source == REMOTE_INVALIDATION ? "Remote" : "Local")
+                << " Invalidation: type = "
                 << ModelTypeToString(it->first)
                 << ", payload = " << it->second.payload;
     }
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NotificationPrinter);
 };
 
 class NullInvalidationStateTracker
@@ skipping 175 matching lines @@
   io_thread.Stop();
   return 0;
 }
 
 }  // namespace
 }  // namespace syncer
 
 int main(int argc, char* argv[]) {
   return syncer::SyncListenNotificationsMain(argc, argv);
 }