[Sync] Fix namespaces for the sync_sessions component.

components/sync_sessions/synced_window_delegate.h

 // Copyright 2012 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_SYNCED_WINDOW_DELEGATE_H_
 #define COMPONENTS_SYNC_SESSIONS_SYNCED_WINDOW_DELEGATE_H_
 
 #include <set>
 
 #include "components/sessions/core/session_id.h"
 
-namespace browser_sync {
+namespace sync_sessions {
 
 class SyncedTabDelegate;
 
 // A SyncedWindowDelegate is used to insulate the sync code from depending
 // directly on Browser and BrowserList.
 class SyncedWindowDelegate {
  public:
   // Methods originating from Browser.
 
   // Returns true iff this browser has a visible window representation
@@ skipping 35 matching lines @@
 
   // Helper methods.
 
   // Return true if this window should be considered for syncing.
   virtual bool ShouldSync() const = 0;
 
  protected:
   virtual ~SyncedWindowDelegate() {}
 };
 
-}  // namespace browser_sync
+}  // namespace sync_sessions
 
 #endif  // COMPONENTS_SYNC_SESSIONS_SYNCED_WINDOW_DELEGATE_H_