sync: Expose sync functionality as functions

sync/sessions/nudge_tracker.cc

 // Copyright (c) 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/sessions/nudge_tracker.h"
 
 #include "base/basictypes.h"
 #include "sync/internal_api/public/base/invalidation.h"
 #include "sync/internal_api/public/sessions/sync_source_info.h"
 #include "sync/protocol/sync.pb.h"
@@ skipping 10 matching lines @@
   ModelTypeSet protocol_types = ProtocolTypes();
   // Default initialize all the type trackers.
   for (ModelTypeSet::Iterator it = protocol_types.First(); it.Good();
        it.Inc()) {
     type_trackers_[it.Get()] = DataTypeTracker();
   }
 }
 
 NudgeTracker::~NudgeTracker() { }
 
-bool NudgeTracker::IsSyncRequired() {
-  for (TypeTrackerMap::iterator it = type_trackers_.begin();
+bool NudgeTracker::IsSyncRequired() const {
+  for (TypeTrackerMap::const_iterator it = type_trackers_.begin();
        it != type_trackers_.end(); ++it) {
     if (it->second.IsSyncRequired()) {
       return true;
     }
   }
   return false;
 }
 
 void NudgeTracker::RecordSuccessfulSyncCycle() {
   updates_source_ = sync_pb::GetUpdatesCallerInfo::UNKNOWN;
@@ skipping 145 matching lines @@
       // any invalidations.
       Invalidation invalidation;
       invalidation.payload = "";
       invalidation_map.insert(std::make_pair(it->first, invalidation));
     }
   }
 
   return SyncSourceInfo(updates_source_, invalidation_map);
 }
 
+void NudgeTracker::SetLegacyNotificationHint(
+    ModelType type,
+    sync_pb::DataTypeProgressMarker* progress) const {
+  DCHECK(type_trackers_.find(type) != type_trackers_.end());
+  type_trackers_.find(type)->second.SetLegacyNotificationHint(progress);
+}
+
 sync_pb::GetUpdatesCallerInfo::GetUpdatesSource NudgeTracker::updates_source()
     const {
   return updates_source_;
 }
 
 void NudgeTracker::FillProtoMessage(
     ModelType type,
     sync_pb::GetUpdateTriggers* msg) const {
   DCHECK(type_trackers_.find(type) != type_trackers_.end());
 
   // Fill what we can from the global data.
   msg->set_invalidations_out_of_sync(invalidations_out_of_sync_);
 
   // Delegate the type-specific work to the DataTypeTracker class.
   type_trackers_.find(type)->second.FillGetUpdatesTriggersMessage(msg);
 }
 
 void NudgeTracker::SetHintBufferSize(size_t size) {
   for (TypeTrackerMap::iterator it = type_trackers_.begin();
        it != type_trackers_.end(); ++it) {
     it->second.UpdatePayloadBufferSize(size);
   }
 }
 
 }  // namespace sessions
 }  // namespace syncer