[Android] Prompt with infobar on filename conflict

chrome/browser/android/download/download_overwrite_infobar_delegate.cc

Index: chrome/browser/android/download/download_overwrite_infobar_delegate.cc
diff --git a/chrome/browser/android/download/download_overwrite_infobar_delegate.cc b/chrome/browser/android/download/download_overwrite_infobar_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..61727c929bbaaeab455872c2095ddcd15f90b7bf
--- /dev/null
+++ b/chrome/browser/android/download/download_overwrite_infobar_delegate.cc
@@ -0,0 +1,16 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/android/download/download_overwrite_infobar_delegate.h"
+
+namespace chrome {
+namespace android {
+
+bool DownloadOverwriteInfoBarDelegate::ShouldExpire(
+    const NavigationDetails& details) const {
+  return false;
+}
+
+}  // namespace android
+}  // namespace chrome