Implement Invalidator::Acknowledge

chrome/browser/sync/glue/android_invalidator_bridge.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 "chrome/browser/sync/glue/android_invalidator_bridge.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 147 matching lines @@
   DCHECK(sync_task_runner_->RunsTasksOnCurrentThread());
   core_->UpdateRegisteredIds(handler, ids);
 }
 
 void AndroidInvalidatorBridge::UnregisterHandler(
     syncer::InvalidationHandler* handler) {
   DCHECK(sync_task_runner_->RunsTasksOnCurrentThread());
   core_->UnregisterHandler(handler);
 }
 
+void AndroidInvalidatorBridge::Acknowledge(
+    const invalidation::ObjectId& id, const syncer::AckHandle& ack_handle) {
+  // Do nothing.
+}
+
 syncer::InvalidatorState AndroidInvalidatorBridge::GetInvalidatorState() const {
   return syncer::INVALIDATIONS_ENABLED;
 }
 
 void AndroidInvalidatorBridge::SetUniqueId(const std::string& unique_id) { }
 
 void AndroidInvalidatorBridge::UpdateCredentials(
     const std::string& email, const std::string& token) { }
 
 void AndroidInvalidatorBridge::SendInvalidation(
@@ skipping 29 matching lines @@
           FROM_HERE,
           base::Bind(&Core::EmitInvalidation,
                      core_,
                      ModelTypeInvalidationMapToObjectIdInvalidationMap(
                          invalidation_map)))) {
     NOTREACHED();
   }
 }
 
 }  // namespace browser_sync