Replace FilePath with base::FilePath in some more top level directories.

sync/internal_api/internal_components_factory_impl.cc

Index: sync/internal_api/internal_components_factory_impl.cc
diff --git a/sync/internal_api/internal_components_factory_impl.cc b/sync/internal_api/internal_components_factory_impl.cc
index 746d25cc6cf8ae3493df83c37de5184b822f939a..68d4c7b93affda2daf7b36bf66eff12b779729dc 100644
--- a/sync/internal_api/internal_components_factory_impl.cc
+++ b/sync/internal_api/internal_components_factory_impl.cc
@@ -52,7 +52,7 @@ InternalComponentsFactoryImpl::BuildContext(
 
 scoped_ptr<syncable::DirectoryBackingStore>
 InternalComponentsFactoryImpl::BuildDirectoryBackingStore(
-      const std::string& dir_name, const FilePath& backing_filepath) {
+      const std::string& dir_name, const base::FilePath& backing_filepath) {
   return scoped_ptr<syncable::DirectoryBackingStore>(
       new syncable::OnDiskDirectoryBackingStore(dir_name, backing_filepath));
 }