Convert file url to lowercase to make it match a file handler pattern.

chrome/browser/chromeos/extensions/file_browser_private_api.cc

Index: chrome/browser/chromeos/extensions/file_browser_private_api.cc
diff --git a/chrome/browser/chromeos/extensions/file_browser_private_api.cc b/chrome/browser/chromeos/extensions/file_browser_private_api.cc
index 6ac7a38b5439d1b9d41544e9b4c450bea350ff56..8ea4d6e84af100c2c0d03789bfccc5f45621e3f2 100644
--- a/chrome/browser/chromeos/extensions/file_browser_private_api.cc
+++ b/chrome/browser/chromeos/extensions/file_browser_private_api.cc
@@ -548,10 +548,6 @@ bool GetFileTasksFileBrowserFunction::RunImpl() {
     std::string file_url;
     if (!files_list->GetString(i, &file_url))
       return false;
-
-    // We need case-insensitive matching, and pattern in handler is already
-    // in lower case.
-    StringToLowerASCII(&file_url);
     file_urls.push_back(GURL(file_url));
   }