[SyncFS] Don't prune trashed file's dirtiness in MetadataDatabase

chrome/browser/sync_file_system/drive_backend/metadata_database.cc

Index: chrome/browser/sync_file_system/drive_backend/metadata_database.cc
diff --git a/chrome/browser/sync_file_system/drive_backend/metadata_database.cc b/chrome/browser/sync_file_system/drive_backend/metadata_database.cc
index 6997c59df65b85d18e7a88331ce9e42d8bc2d8bd..4e25905ec67cf1c2bf6ecad023675333544c02fc 100644
--- a/chrome/browser/sync_file_system/drive_backend/metadata_database.cc
+++ b/chrome/browser/sync_file_system/drive_backend/metadata_database.cc
@@ -1940,7 +1940,8 @@ bool MetadataDatabase::CanClearDirty(const FileTracker& tracker) {
   const FileDetails& remote_details = metadata.details();
   const FileDetails& synced_details = tracker.synced_details();
   if (remote_details.title() != synced_details.title() ||
-      remote_details.md5() != synced_details.md5())
+      remote_details.md5() != synced_details.md5() ||
+      remote_details.missing() != synced_details.missing())
     return false;
 
   std::set<std::string> parents;