Files.app: Provide detailed change information on onDirectoryChanged event

chrome/browser/chromeos/drive/file_system/touch_operation.cc

Index: chrome/browser/chromeos/drive/file_system/touch_operation.cc
diff --git a/chrome/browser/chromeos/drive/file_system/touch_operation.cc b/chrome/browser/chromeos/drive/file_system/touch_operation.cc
index bb1b23dde33d75581647c5c7448649206b722648..af71e8198407a80dfc9b19263ccb20fcb1a7127b 100644
--- a/chrome/browser/chromeos/drive/file_system/touch_operation.cc
+++ b/chrome/browser/chromeos/drive/file_system/touch_operation.cc
@@ -8,6 +8,7 @@
 #include "base/files/file_path.h"
 #include "base/sequenced_task_runner.h"
 #include "base/time/time.h"
+#include "chrome/browser/chromeos/drive/file_change.h"
 #include "chrome/browser/chromeos/drive/file_errors.h"
 #include "chrome/browser/chromeos/drive/file_system/operation_observer.h"
 #include "chrome/browser/chromeos/drive/resource_metadata.h"
@@ -88,8 +89,13 @@ void TouchOperation::TouchFileAfterUpdateLocalState(
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
+  FileChange changed_files;
+  changed_files.Update(file_path,
+                       FileChange::FILE_TYPE_FILE,
+                       FileChange::ADD_OR_UPDATE);
+
   if (error == FILE_ERROR_OK) {
-    observer_->OnDirectoryChangedByOperation(file_path.DirName());
+    observer_->OnDirectoryChangedByOperation(changed_files);
     observer_->OnEntryUpdatedByOperation(*local_id);
   }
   callback.Run(error);