sync: beginnings of MessageLoop based SyncerThread

chrome/browser/sync/sessions/sync_session.cc

Index: chrome/browser/sync/sessions/sync_session.cc
diff --git a/chrome/browser/sync/sessions/sync_session.cc b/chrome/browser/sync/sessions/sync_session.cc
index d968e83c953007d7e67f5113dfc03f005ecceeca..95d679252f453b407f82d21a04e48736b8426d75 100644
--- a/chrome/browser/sync/sessions/sync_session.cc
+++ b/chrome/browser/sync/sessions/sync_session.cc
@@ -24,6 +24,21 @@ SyncSession::SyncSession(SyncSessionContext* context, Delegate* delegate,
 
 SyncSession::~SyncSession() {}
 
+void SyncSession::Coalesce(const SyncSession* session) {
+  if (context_ != session->context() || delegate_ != session->delegate_) {
+    NOTREACHED();
+    return;
+  }
+
+  source_ = SyncSourceInfo(session->source_.first,
+                           source_.second | session->source_.second);
+  // TODO(tim): Update routing_info_ and workers_.
+}
+
+void SyncSession::ResetTransientState() {
+  status_controller_.reset(new StatusController(routing_info_));
+}
+
 SyncSessionSnapshot SyncSession::TakeSnapshot() const {
   syncable::ScopedDirLookup dir(context_->directory_manager(),
                                 context_->account_name());