[Win] Create ModuleWatcher.

chrome/test/conflicts/conflicts_dll.cc

Index: chrome/test/conflicts/conflicts_dll.cc
diff --git a/chrome/test/conflicts/conflicts_dll.cc b/chrome/test/conflicts/conflicts_dll.cc
new file mode 100644
index 0000000000000000000000000000000000000000..23141248afc8dbc0f71a3cacb281d28ac4efc8c3
--- /dev/null
+++ b/chrome/test/conflicts/conflicts_dll.cc
@@ -0,0 +1,11 @@
+// Copyright 2016 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.
+
+// An empty DLL for use when testing the chrome://conflicts implementation.
+
+#include <windows.h>
+
+BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved) {
+  return TRUE;
+}