Introduce url::Origin to represent Web Origin.

content/common/serialized_origin.cc

Index: content/common/serialized_origin.cc
diff --git a/content/common/serialized_origin.cc b/content/common/serialized_origin.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9ba190e7ee249ec68b9b7d24977e9dc7dae630a8
--- /dev/null
+++ b/content/common/serialized_origin.cc
@@ -0,0 +1,21 @@
+// Copyright 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 "content/common/serialized_origin.h"
+
+#include <string>
+
+#include "third_party/WebKit/public/platform/WebString.h"
+
+namespace content {
+
+SerializedOrigin::SerializedOrigin() {}
+
+SerializedOrigin::SerializedOrigin(const std::string& origin)
+    : string(origin) {}
+
+SerializedOrigin::SerializedOrigin(const blink::WebString& origin)
+    : string(origin.utf8()) {}
+
+}  // namespace content