Unbreak unit tests. Revert r7564.

chrome/browser/history/download_database.cc

Index: chrome/browser/history/download_database.cc
===================================================================
--- chrome/browser/history/download_database.cc	(revision 7570)
+++ chrome/browser/history/download_database.cc	(working copy)
@@ -69,8 +69,7 @@
   while (statement->step() == SQLITE_ROW) {
     DownloadCreateInfo info;
     info.db_handle = statement->column_int64(0);
-    std::wstring path_str = info.path.ToWStringHack();
-    statement->column_string16(1, &path_str);
+    statement->column_string16(1, &info.path);
     statement->column_string16(2, &info.url);
     info.start_time = Time::FromTimeT(statement->column_int64(3));
     info.received_bytes = statement->column_int64(4);
@@ -118,7 +117,7 @@
   if (!statement.is_valid())
     return 0;
 
-  statement->bind_wstring(0, info.path.ToWStringHack());
+  statement->bind_wstring(0, info.path);
   statement->bind_wstring(1, info.url);
   statement->bind_int64(2, info.start_time.ToTimeT());
   statement->bind_int64(3, info.received_bytes);