Add the data attribute to the Notification object

Source/bindings/modules/v8/custom/V8NotificationCustom.cpp

Index: Source/bindings/modules/v8/custom/V8NotificationCustom.cpp
diff --git a/Source/bindings/modules/v8/custom/V8NotificationCustom.cpp b/Source/bindings/modules/v8/custom/V8NotificationCustom.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..4597f8c5b4ec546f342fafa44e0664b593fe4eb1
--- /dev/null
+++ b/Source/bindings/modules/v8/custom/V8NotificationCustom.cpp
@@ -0,0 +1,25 @@
+// Copyright 2015 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 "config.h"
+#include "bindings/modules/v8/V8Notification.h"
+
+#include "bindings/core/v8/SerializedScriptValue.h"

[Peter Beverloo, 2015/03/12 01:16:26]

nit: you can drop this include

[Sanghyun Park, 2015/03/12 02:58:47]

I'll remove this.

+#include "modules/notifications/Notification.h"
+
+namespace blink {
+
+void V8Notification::dataAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
+{
+    v8::Local<v8::Object> holder = info.Holder();
+    Notification* impl = V8Notification::toImpl(holder);
+    if (!impl->data()) {
+        v8SetReturnValueNull(info);
+        return;
+    }
+
+    v8SetReturnValue(info, impl->data()->deserialize(info.GetIsolate()));
+}
+
+} // namespace blink