Implement new invalidations ack tracking system

sync/notifier/mock_ack_handler.cc

 // Copyright 2013 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 "sync/notifier/mock_ack_handler.h"
 
 #include "sync/internal_api/public/base/ack_handle.h"
 #include "sync/internal_api/public/base/invalidation.h"
 
 namespace syncer {
@@ skipping 16 matching lines @@
 }
 
 }  // namespace
 
 MockAckHandler::MockAckHandler() {}
 
 MockAckHandler::~MockAckHandler() {}
 
 void MockAckHandler::RegisterInvalidation(Invalidation* invalidation) {
   unacked_invalidations_.push_back(*invalidation);
-  invalidation->set_ack_handler(WeakHandleThis());
+  invalidation->InitAckHandler(WeakHandleThis());
 }
 
 void MockAckHandler::RegisterUnsentInvalidation(Invalidation* invalidation) {
   unsent_invalidations_.push_back(*invalidation);
 }
 
 bool MockAckHandler::IsUnacked(const Invalidation& invalidation) const {
   AckHandleMatcher matcher(invalidation.ack_handle());
   InvalidationVector::const_iterator it = std::find_if(
       unacked_invalidations_.begin(),
@@ skipping 28 matching lines @@
 void MockAckHandler::Drop(
     const invalidation::ObjectId& id,
     const AckHandle& handle) {
 }
 
 WeakHandle<AckHandler> MockAckHandler::WeakHandleThis() {
   return WeakHandle<AckHandler>(AsWeakPtr());
 }
 
 }  // namespace syncer