Fix an issue that temp files are left permanently on storage after chrome crash

chrome/browser/download/download_history_unittest.cc

Index: chrome/browser/download/download_history_unittest.cc
diff --git a/chrome/browser/download/download_history_unittest.cc b/chrome/browser/download/download_history_unittest.cc
index 04a22bf56d5e498cbb83c5be617422f1f863dfd1..8f8ec4fee421fde97d5c6ecdefcfc6c6250295fe 100644
--- a/chrome/browser/download/download_history_unittest.cc
+++ b/chrome/browser/download/download_history_unittest.cc
@@ -89,7 +89,8 @@ class FakeHistoryAdapter : public DownloadHistory::HistoryAdapter {
     create_download_callback_.Reset();
   }
 
-  void UpdateDownload(const history::DownloadRow& info) override {
+  void UpdateDownload(const history::DownloadRow& info,
+                      bool should_commit_immediately) override {
     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
     update_download_ = info;

[asanka, 2016/11/16 23:15:57]

Store should_commit_immediately bit and test that it is set as expected when
changing the current path.

[qinmin, 2016/11/17 00:46:30]

Done.

   }