Defer ARC file system operations while ARC is booting.

chrome/browser/chromeos/BUILD.gn

Index: chrome/browser/chromeos/BUILD.gn
diff --git a/chrome/browser/chromeos/BUILD.gn b/chrome/browser/chromeos/BUILD.gn
index 4a6c5b79e63a21e09de6537a36769f181a7ac1da..0e7df531deb6bfcc7c1cbe8ffc64457ec8d47635 100644
--- a/chrome/browser/chromeos/BUILD.gn
+++ b/chrome/browser/chromeos/BUILD.gn
@@ -247,6 +247,8 @@ source_set("chromeos") {
     "arc/fileapi/arc_content_file_system_file_stream_reader.h",
     "arc/fileapi/arc_content_file_system_url_util.cc",
     "arc/fileapi/arc_content_file_system_url_util.h",
+    "arc/fileapi/arc_deferred_file_system_operation_runner.cc",
+    "arc/fileapi/arc_deferred_file_system_operation_runner.h",
     "arc/fileapi/arc_documents_provider_async_file_util.cc",
     "arc/fileapi/arc_documents_provider_async_file_util.h",
     "arc/fileapi/arc_documents_provider_backend_delegate.cc",
@@ -259,8 +261,8 @@ source_set("chromeos") {
     "arc/fileapi/arc_documents_provider_root_map.h",
     "arc/fileapi/arc_documents_provider_util.cc",
     "arc/fileapi/arc_documents_provider_util.h",
-    "arc/fileapi/arc_file_system_instance_util.cc",
-    "arc/fileapi/arc_file_system_instance_util.h",
+    "arc/fileapi/arc_file_system_operation_runner_util.cc",
+    "arc/fileapi/arc_file_system_operation_runner_util.h",
     "arc/fileapi/arc_file_system_service.cc",
     "arc/fileapi/arc_file_system_service.h",
     "arc/fileapi/arc_media_view_util.cc",
@@ -1460,6 +1462,7 @@ source_set("unit_tests") {
     "arc/fileapi/arc_content_file_system_async_file_util_unittest.cc",
     "arc/fileapi/arc_content_file_system_file_stream_reader_unittest.cc",
     "arc/fileapi/arc_content_file_system_url_util_unittest.cc",
+    "arc/fileapi/arc_deferred_file_system_operation_runner_unittest.cc",
     "arc/fileapi/arc_documents_provider_root_unittest.cc",
     "arc/fileapi/arc_documents_provider_util_unittest.cc",
     "arc/intent_helper/arc_external_protocol_dialog_unittest.cc",