[SyncFS] Move SyncFS V1 files from drive_backend to drive_backend_v1

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index b6020fead3ba31a221c8e5cca95a14b2ab6b7b18..49dc5b980cd9d25fc9c0a0573d1f66f1c2a71f9c 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -2202,43 +2202,24 @@
         'browser/sync/retry_verifier.h',
         'browser/sync/sessions2/tab_node_pool2.cc',
         'browser/sync/sessions2/tab_node_pool2.h',
-        'browser/sync/sync_startup_tracker.cc',
-        'browser/sync/sync_startup_tracker.h',
         'browser/sync/sync_global_error.cc',
         'browser/sync/sync_global_error.h',
         'browser/sync/sync_prefs.cc',
         'browser/sync/sync_prefs.h',
+        'browser/sync/sync_startup_tracker.cc',
+        'browser/sync/sync_startup_tracker.h',
         'browser/sync/sync_ui_util.cc',
         'browser/sync/sync_ui_util.h',
         'browser/sync/user_selectable_sync_type.h',
         'browser/sync_file_system/conflict_resolution_policy.h',
         'browser/sync_file_system/conflict_resolution_resolver.cc',
         'browser/sync_file_system/conflict_resolution_resolver.h',
-        'browser/sync_file_system/drive_backend/api_util.cc',
-        'browser/sync_file_system/drive_backend/api_util.h',
-        'browser/sync_file_system/drive_backend/api_util_interface.h',
-        'browser/sync_file_system/drive_backend/drive_file_sync_service.cc',
-        'browser/sync_file_system/drive_backend/drive_file_sync_service.h',
-        'browser/sync_file_system/drive_backend/drive_file_sync_util.cc',
-        'browser/sync_file_system/drive_backend/drive_file_sync_util.h',
-        'browser/sync_file_system/drive_backend/drive_metadata_store.cc',
-        'browser/sync_file_system/drive_backend/drive_metadata_store.h',
-        'browser/sync_file_system/drive_backend/local_sync_delegate.cc',
-        'browser/sync_file_system/drive_backend/local_sync_delegate.h',
-        'browser/sync_file_system/drive_backend/local_sync_operation_resolver.cc',
-        'browser/sync_file_system/drive_backend/local_sync_operation_resolver.h',
-        'browser/sync_file_system/drive_backend/metadata_database.cc',
-        'browser/sync_file_system/drive_backend/metadata_database.h',
         'browser/sync_file_system/drive_backend/local_to_remote_syncer.cc',
         'browser/sync_file_system/drive_backend/local_to_remote_syncer.h',
+        'browser/sync_file_system/drive_backend/metadata_database.cc',
+        'browser/sync_file_system/drive_backend/metadata_database.h',
         'browser/sync_file_system/drive_backend/metadata_db_migration_util.cc',
         'browser/sync_file_system/drive_backend/metadata_db_migration_util.h',
-        'browser/sync_file_system/drive_backend/remote_change_handler.cc',
-        'browser/sync_file_system/drive_backend/remote_change_handler.h',
-        'browser/sync_file_system/drive_backend/remote_sync_delegate.cc',
-        'browser/sync_file_system/drive_backend/remote_sync_delegate.h',
-        'browser/sync_file_system/drive_backend/remote_sync_operation_resolver.cc',
-        'browser/sync_file_system/drive_backend/remote_sync_operation_resolver.h',
         'browser/sync_file_system/drive_backend/remote_to_local_syncer.cc',
         'browser/sync_file_system/drive_backend/remote_to_local_syncer.h',
         'browser/sync_file_system/drive_backend/sync_engine.cc',
@@ -2247,6 +2228,25 @@
         'browser/sync_file_system/drive_backend/sync_engine_initializer.h',
         'browser/sync_file_system/drive_backend/tracker_set.cc',
         'browser/sync_file_system/drive_backend/tracker_set.h',
+        'browser/sync_file_system/drive_backend_v1/api_util.cc',
+        'browser/sync_file_system/drive_backend_v1/api_util.h',
+        'browser/sync_file_system/drive_backend_v1/api_util_interface.h',
+        'browser/sync_file_system/drive_backend_v1/drive_file_sync_service.cc',
+        'browser/sync_file_system/drive_backend_v1/drive_file_sync_service.h',
+        'browser/sync_file_system/drive_backend_v1/drive_file_sync_util.cc',
+        'browser/sync_file_system/drive_backend_v1/drive_file_sync_util.h',
+        'browser/sync_file_system/drive_backend_v1/drive_metadata_store.cc',
+        'browser/sync_file_system/drive_backend_v1/drive_metadata_store.h',
+        'browser/sync_file_system/drive_backend_v1/local_sync_delegate.cc',
+        'browser/sync_file_system/drive_backend_v1/local_sync_delegate.h',
+        'browser/sync_file_system/drive_backend_v1/local_sync_operation_resolver.cc',
+        'browser/sync_file_system/drive_backend_v1/local_sync_operation_resolver.h',
+        'browser/sync_file_system/drive_backend_v1/remote_change_handler.cc',
+        'browser/sync_file_system/drive_backend_v1/remote_change_handler.h',
+        'browser/sync_file_system/drive_backend_v1/remote_sync_delegate.cc',
+        'browser/sync_file_system/drive_backend_v1/remote_sync_delegate.h',
+        'browser/sync_file_system/drive_backend_v1/remote_sync_operation_resolver.cc',
+        'browser/sync_file_system/drive_backend_v1/remote_sync_operation_resolver.h',
         'browser/sync_file_system/file_change.cc',
         'browser/sync_file_system/file_change.h',
         'browser/sync_file_system/file_status_observer.h',