A few minor changes to the chrome.downloads extension API

chrome/browser/download/download_query.cc

Index: chrome/browser/download/download_query.cc
diff --git a/chrome/browser/download/download_query.cc b/chrome/browser/download/download_query.cc
index 3f7ed1002f52d8f3e62f964ac4543fced44b128f..76448d49a9c366dacc1568f84151898956353de6 100644
--- a/chrome/browser/download/download_query.cc
+++ b/chrome/browser/download/download_query.cc
@@ -58,8 +58,6 @@ static bool MatchesQuery(const string16& query, const DownloadItem& item) {
   if (query.empty())
     return true;
 
-  DCHECK_EQ(query, base::i18n::ToLower(query));
-
   string16 url_raw(UTF8ToUTF16(item.GetOriginalUrl().spec()));
   if (base::i18n::StringSearchIgnoringCaseAndAccents(
           query, url_raw, NULL, NULL)) {
@@ -270,7 +268,7 @@ bool DownloadQuery::AddFilter(DownloadQuery::FilterType type,
     case FILTER_QUERY: {
       string16 query;
       return GetAs(value, &query) &&
-             AddFilter(base::Bind(&MatchesQuery, query));
+             AddFilter(base::Bind(&MatchesQuery, base::i18n::ToLower(query)));
     }
     case FILTER_ENDED_AFTER:
       return AddFilter(BuildFilter<std::string>(value, GT, &GetEndTime));