Introduce WebRequestEventRouterDelegate.

extensions/browser/api/web_request/web_request_event_router_delegate.cc

Index: extensions/browser/api/web_request/web_request_event_router_delegate.cc
diff --git a/extensions/browser/api/web_request/web_request_event_router_delegate.cc b/extensions/browser/api/web_request/web_request_event_router_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bb8af787848a9c759be46640a5c8cd5381e339bc
--- /dev/null
+++ b/extensions/browser/api/web_request/web_request_event_router_delegate.cc
@@ -0,0 +1,20 @@
+// Copyright (c) 2014 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 "extensions/browser/api/web_request/web_request_event_router_delegate.h"
+
+namespace extensions {
+
+WebRequestEventRouterDelegate::WebRequestEventRouterDelegate() {
+}
+
+WebRequestEventRouterDelegate::~WebRequestEventRouterDelegate() {
+}
+
+bool WebRequestEventRouterDelegate::OnGetMachingListernersImplCheck(
+    int tab_id, int window_id, net::URLRequest* request) {
+  return false;
+}
+
+}  // namespace extensions