sync: beginnings of MessageLoop based SyncerThread

chrome/browser/sync/sessions/sync_session_context.h

 // Copyright (c) 2009 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.
 
 // SyncSessionContext encapsulates the contextual information and engine
 // components specific to a SyncSession. A context is accessible via
 // a SyncSession so that session SyncerCommands and parts of the engine have
 // a convenient way to access other parts. In this way it can be thought of as
 // the surrounding environment for the SyncSession. The components of this
 // environment are either valid or not valid for the entire context lifetime,
@@ skipping 66 matching lines @@
   const std::string& account_name() { return account_name_; }
 
   const ModelSafeRoutingInfo& previous_session_routing_info() const {
     return previous_session_routing_info_;
   }
 
   void set_previous_session_routing_info(const ModelSafeRoutingInfo& info) {
     previous_session_routing_info_ = info;
   }
 
+  // TODO(tim): Deprecated.  Bug 26339.
   sessions::SyncSessionSnapshot* previous_session_snapshot() {
     return previous_session_snapshot_.get();
   }
 
   void set_last_snapshot(const SyncSessionSnapshot& snapshot);
 
   void NotifyListeners(const SyncEngineEvent& event) {
     FOR_EACH_OBSERVER(SyncEngineEventListener, listeners_,
                       OnSyncEngineEvent(event));
   }
@@ skipping 57 matching lines @@
  private:
   SyncSessionContext* context_;
   ConflictResolver* resolver_;
   DISALLOW_COPY_AND_ASSIGN(ScopedSessionContextConflictResolver);
 };
 
 }  // namespace sessions
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_SESSIONS_SYNC_SESSION_CONTEXT_H_