Fix l10n_util DCHECK on OSX quitting with more than one download in progress.

chrome/browser/app_controller_mac.mm

Index: chrome/browser/app_controller_mac.mm
diff --git a/chrome/browser/app_controller_mac.mm b/chrome/browser/app_controller_mac.mm
index 4bbc7c94fceecc4d199f1560f6f609fb1adb678e..366c3860e8093f49bc8daa52f1a3f1fdf747e88b 100644
--- a/chrome/browser/app_controller_mac.mm
+++ b/chrome/browser/app_controller_mac.mm
@@ -827,9 +827,8 @@ class AppControllerProfileObserver : public ProfileInfoCacheObserver {
         IDS_SINGLE_DOWNLOAD_REMOVE_CONFIRM_EXPLANATION);
   } else {
     // Dialog text: warning and explanation.
-    titleText = l10n_util::GetNSStringF(
-        IDS_MULTIPLE_DOWNLOADS_REMOVE_CONFIRM_TITLE,
-        base::IntToString16(downloadCount));
+    titleText = l10n_util::GetNSString(
+        IDS_MULTIPLE_DOWNLOADS_REMOVE_CONFIRM_TITLE);
     explanationText = l10n_util::GetNSString(
         IDS_MULTIPLE_DOWNLOADS_REMOVE_CONFIRM_EXPLANATION);
   }