Implement SyncEngine::DumpFiles()

chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc

Index: chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc
diff --git a/chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc b/chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc
index b05bf625fb2c3481cbf9b43ee6ea9f844d0c5ebd..9a5ff853825fd58b1326296d49486692c7478326 100644
--- a/chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc
+++ b/chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc
@@ -118,5 +118,19 @@ webkit_blob::ScopedFile CreateTemporaryFile() {
       base::MessageLoopProxy::current().get());
 }
 
+std::string FileKindToString(int file_kind) {
+  switch (file_kind) {
+    case FILE_KIND_UNSUPPORTED:
+      return "unsupported";
+    case FILE_KIND_FILE:
+      return "file";
+    case FILE_KIND_FOLDER:
+      return "folder";
+  }
+
+  NOTREACHED();
+  return "unknown";
+}
+
 }  // namespace drive_backend
 }  // namespace sync_file_system