[Sync] Fix namespace for sync_driver component

chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc

Index: chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc
diff --git a/chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc b/chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc
index ed3827e59a06ff786bef16fd0ce8f845e4125df9..664dfe4a67776bf76156f29d631b4c07c973e813 100644
--- a/chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc
+++ b/chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc
@@ -72,7 +72,7 @@ void QuitMessageLoop() {
   base::MessageLoop::current()->Quit();
 }
 
-class MockSyncFrontend : public SyncFrontend {
+class MockSyncFrontend : public sync_driver::SyncFrontend {
  public:
   virtual ~MockSyncFrontend() {}
 
@@ -237,16 +237,17 @@ class SyncBackendHostTest : public testing::Test {
   void ConfigureDataTypes(syncer::ModelTypeSet types_to_add,
                           syncer::ModelTypeSet types_to_remove,
                           syncer::ModelTypeSet types_to_unapply) {
-    BackendDataTypeConfigurer::DataTypeConfigStateMap config_state_map;
-    BackendDataTypeConfigurer::SetDataTypesState(
-        BackendDataTypeConfigurer::CONFIGURE_ACTIVE,
+    sync_driver::BackendDataTypeConfigurer::DataTypeConfigStateMap
+        config_state_map;
+    sync_driver::BackendDataTypeConfigurer::SetDataTypesState(
+        sync_driver::BackendDataTypeConfigurer::CONFIGURE_ACTIVE,
         types_to_add,
         &config_state_map);
-    BackendDataTypeConfigurer::SetDataTypesState(
-        BackendDataTypeConfigurer::DISABLED,
+    sync_driver::BackendDataTypeConfigurer::SetDataTypesState(
+        sync_driver::BackendDataTypeConfigurer::DISABLED,
         types_to_remove, &config_state_map);
-    BackendDataTypeConfigurer::SetDataTypesState(
-        BackendDataTypeConfigurer::UNREADY,
+    sync_driver::BackendDataTypeConfigurer::SetDataTypesState(
+        sync_driver::BackendDataTypeConfigurer::UNREADY,
         types_to_unapply, &config_state_map);
 
     types_to_add.PutAll(syncer::ControlTypes());