[Sync] Fix namespaces for the sync_sessions component.

components/sync_sessions/local_session_event_router.h

 // Copyright 2015 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.
 
 #ifndef COMPONENTS_SYNC_SESSIONS_LOCAL_SESSION_EVENT_ROUTER_H_
 #define COMPONENTS_SYNC_SESSIONS_LOCAL_SESSION_EVENT_ROUTER_H_
 
 #include <set>
 
 #include "base/macros.h"
 #include "url/gurl.h"
 
-namespace browser_sync {
+namespace sync_sessions {
 
 class SyncedTabDelegate;
 
 // An interface defining the ways in which local open tab events can interact
 // with session sync.  All local tab events flow to sync via this interface.
 // In that way it is analogous to sync changes flowing to the local model
 // via ProcessSyncChanges, just with a more granular breakdown.
 class LocalSessionEventHandler {
  public:
   virtual ~LocalSessionEventHandler() {}
@@ skipping 27 matching lines @@
   virtual void StartRoutingTo(LocalSessionEventHandler* handler) = 0;
   virtual void Stop() = 0;
 
  protected:
   LocalSessionEventRouter() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LocalSessionEventRouter);
 };
 
-}  // namespace browser_sync
+}  // namespace sync_sessions
 
 #endif  // COMPONENTS_SYNC_SESSIONS_LOCAL_SESSION_EVENT_ROUTER_H_