[Sync] Fix namespace for sync_driver component

chrome/browser/sync/glue/sync_backend_registrar.h

Index: chrome/browser/sync/glue/sync_backend_registrar.h
diff --git a/chrome/browser/sync/glue/sync_backend_registrar.h b/chrome/browser/sync/glue/sync_backend_registrar.h
index d9883070f91ea041bc51d82c43a5dcfad1f4c75c..744bad2ac8dff15ebd74abfaa76642d642223c3f 100644
--- a/chrome/browser/sync/glue/sync_backend_registrar.h
+++ b/chrome/browser/sync/glue/sync_backend_registrar.h
@@ -27,9 +27,12 @@ namespace syncer {
 struct UserShare;
 }  // namespace syncer
 
+namespace sync_driver {
+class ChangeProcessor;
+}
+
 namespace browser_sync {
 
-class ChangeProcessor;
 class UIModelWorker;
 
 // A class that keep track of the workers, change processors, and
@@ -88,7 +91,7 @@ class SyncBackendRegistrar : public syncer::SyncManager::ChangeDelegate,
   // from |group|'s native thread.
   void ActivateDataType(syncer::ModelType type,
                         syncer::ModelSafeGroup group,
-                        ChangeProcessor* change_processor,
+                        sync_driver::ChangeProcessor* change_processor,
                         syncer::UserShare* user_share);
 
   // Deactivates the given type if necessary.  Must be called from the
@@ -126,7 +129,7 @@ class SyncBackendRegistrar : public syncer::SyncManager::ChangeDelegate,
  private:
   typedef std::map<syncer::ModelSafeGroup,
       scoped_refptr<syncer::ModelSafeWorker> > WorkerMap;
-  typedef std::map<syncer::ModelType, ChangeProcessor*>
+  typedef std::map<syncer::ModelType, sync_driver::ChangeProcessor*>
       ProcessorMap;
 
   // Callback after workers unregister from observing destruction of their
@@ -137,12 +140,13 @@ class SyncBackendRegistrar : public syncer::SyncManager::ChangeDelegate,
 
   // Returns the change processor for the given model, or NULL if none
   // exists.  Must be called from |group|'s native thread.
-  ChangeProcessor* GetProcessor(syncer::ModelType type) const;
+  sync_driver::ChangeProcessor* GetProcessor(syncer::ModelType type) const;
 
   // Must be called with |lock_| held.  Simply returns the change
   // processor for the given type, if it exists.  May be called from
   // any thread.
-  ChangeProcessor* GetProcessorUnsafe(syncer::ModelType type) const;
+  sync_driver::ChangeProcessor* GetProcessorUnsafe(
+      syncer::ModelType type) const;
 
   // Return true if |model_type| lives on the current thread.  Must be
   // called with |lock_| held.  May be called on any thread.