Remove dependency of chrome in WebRequestPermissions.

extensions/browser/api/web_request/web_request_permissions_delegate.cc

Index: extensions/browser/api/web_request/web_request_permissions_delegate.cc
diff --git a/extensions/browser/api/web_request/web_request_permissions_delegate.cc b/extensions/browser/api/web_request/web_request_permissions_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d468aa221e769b69c3c4644c4a3a3c5b9ef21e30
--- /dev/null
+++ b/extensions/browser/api/web_request/web_request_permissions_delegate.cc
@@ -0,0 +1,15 @@
+// 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_permissions_delegate.h"
+
+namespace extensions {
+
+WebRequestPermissionsDelegate::WebRequestPermissionsDelegate() {
+}
+
+WebRequestPermissionsDelegate::~WebRequestPermissionsDelegate() {
+}
+
+}  // namespace extensions