drive: Recover cache entries from trashed DB to filter out non-dirty cache files

chrome/browser/chromeos/drive/file_cache.h

Index: chrome/browser/chromeos/drive/file_cache.h
diff --git a/chrome/browser/chromeos/drive/file_cache.h b/chrome/browser/chromeos/drive/file_cache.h
index 66a34a281929afa82c982f4892a79aae4bc02c8c..1127ec9934ba2aebfc221e8f36ec118a280ef6e8 100644
--- a/chrome/browser/chromeos/drive/file_cache.h
+++ b/chrome/browser/chromeos/drive/file_cache.h
@@ -157,7 +157,11 @@ class FileCache {
 
   // Moves files in the cache directory which are not manged by FileCache to
   // |dest_directory|.
-  bool RecoverFilesFromCacheDirectory(const base::FilePath& dest_directory);
+  // |recovered_cache_entries| should contain cache entries recovered from the
+  // trashed metadata DB. It is used to ignore non-dirty files.
+  bool RecoverFilesFromCacheDirectory(
+      const base::FilePath& dest_directory,
+      const std::map<std::string, FileCacheEntry>& recovered_cache_entries);
 
  private:
   friend class FileCacheTest;