drive: Move temporary file removal responsiblity to FileCache

chrome/browser/chromeos/drive/file_cache_metadata.cc

Index: chrome/browser/chromeos/drive/file_cache_metadata.cc
diff --git a/chrome/browser/chromeos/drive/file_cache_metadata.cc b/chrome/browser/chromeos/drive/file_cache_metadata.cc
index 57288d197d69e23d886043acb5daf4a937bdada9..6b443da70e1f2e057fbe2a61e2a6dddd6b50148c 100644
--- a/chrome/browser/chromeos/drive/file_cache_metadata.cc
+++ b/chrome/browser/chromeos/drive/file_cache_metadata.cc
@@ -334,20 +334,6 @@ bool FileCacheMetadata::GetCacheEntry(const std::string& resource_id,
   return true;
 }
 
-void FileCacheMetadata::RemoveTemporaryFiles() {
-  AssertOnSequencedWorkerPool();
-
-  scoped_ptr<leveldb::Iterator> iter(level_db_->NewIterator(
-      leveldb::ReadOptions()));
-  for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
-    FileCacheEntry cache_entry;
-    const bool ok = cache_entry.ParseFromArray(iter->value().data(),
-                                               iter->value().size());
-    if (ok && !cache_entry.is_persistent())
-      level_db_->Delete(leveldb::WriteOptions(), iter->key());
-  }
-}
-
 scoped_ptr<FileCacheMetadata::Iterator> FileCacheMetadata::GetIterator() {
   AssertOnSequencedWorkerPool();