Move chrome/browser/chromeos/drive/file_system.cc (+deps) into components/drive.

chrome/chrome_browser_chromeos.gypi

Index: chrome/chrome_browser_chromeos.gypi
diff --git a/chrome/chrome_browser_chromeos.gypi b/chrome/chrome_browser_chromeos.gypi
index 00e40c7f52173140c541e4298c5bed2d4543f2c0..6fde36d0cc20eb7a6ed938639eaccafc1882dbe2 100644
--- a/chrome/chrome_browser_chromeos.gypi
+++ b/chrome/chrome_browser_chromeos.gypi
@@ -97,17 +97,12 @@
         'browser/chromeos/display/overscan_calibrator.h',
         'browser/chromeos/drive/debug_info_collector.cc',
         'browser/chromeos/drive/debug_info_collector.h',
-        'browser/chromeos/drive/directory_loader.cc',
-        'browser/chromeos/drive/directory_loader.h',
         'browser/chromeos/drive/download_handler.cc',
         'browser/chromeos/drive/download_handler.h',
         'browser/chromeos/drive/drive_file_stream_reader.cc',
         'browser/chromeos/drive/drive_file_stream_reader.h',
         'browser/chromeos/drive/drive_integration_service.cc',
         'browser/chromeos/drive/drive_integration_service.h',
-        'browser/chromeos/drive/file_system.cc',
-        'browser/chromeos/drive/file_system.h',
-        'browser/chromeos/drive/file_system_observer.h',
         'browser/chromeos/drive/file_system_util.cc',
         'browser/chromeos/drive/file_system_util.h',
         'browser/chromeos/drive/file_task_executor.cc',
@@ -122,18 +117,6 @@
         'browser/chromeos/drive/fileapi/webkit_file_stream_reader_impl.h',
         'browser/chromeos/drive/fileapi/webkit_file_stream_writer_impl.cc',
         'browser/chromeos/drive/fileapi/webkit_file_stream_writer_impl.h',
-        'browser/chromeos/drive/remove_stale_cache_files.cc',
-        'browser/chromeos/drive/remove_stale_cache_files.h',
-        'browser/chromeos/drive/search_metadata.cc',
-        'browser/chromeos/drive/search_metadata.h',
-        'browser/chromeos/drive/sync/entry_revert_performer.cc',
-        'browser/chromeos/drive/sync/entry_revert_performer.h',
-        'browser/chromeos/drive/sync/entry_update_performer.cc',
-        'browser/chromeos/drive/sync/entry_update_performer.h',
-        'browser/chromeos/drive/sync/remove_performer.cc',
-        'browser/chromeos/drive/sync/remove_performer.h',
-        'browser/chromeos/drive/sync_client.cc',
-        'browser/chromeos/drive/sync_client.h',
         'browser/chromeos/drive/write_on_cache_file.cc',
         'browser/chromeos/drive/write_on_cache_file.h',
         'browser/chromeos/enrollment_dialog_view.cc',