Remove the temporary scaffolding stubs.

chrome/browser/browser_list_win.cc

Index: chrome/browser/browser_list_win.cc
diff --git a/chrome/browser/browser_list_win.cc b/chrome/browser/browser_list_win.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a66ddec8460342338270b99816f66b7b73a4f3bb
--- /dev/null
+++ b/chrome/browser/browser_list_win.cc
@@ -0,0 +1,12 @@
+// Copyright (c) 2010 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/browser_list.h"
+
+#include "views/window/window.h"
+
+// static
+void BrowserList::AllBrowsersClosed() {
+  views::Window::CloseAllSecondaryWindows();
+}