MediaRecorder Blink part

Source/modules/mediastream/BlobEvent.cpp

Index: Source/modules/mediastream/BlobEvent.cpp
diff --git a/Source/modules/mediastream/BlobEvent.cpp b/Source/modules/mediastream/BlobEvent.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..86127aef4a29a90a7749c9ca80f8015c20f554e8
--- /dev/null
+++ b/Source/modules/mediastream/BlobEvent.cpp
@@ -0,0 +1,17 @@
+// 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 "modules/mediastream/BlobEvent.h"
+
+namespace blink {
+
+DEFINE_TRACE(BlobEvent)
+{
+    visitor->trace(m_blob);
+    Event::trace(visitor);
+}
+
+} // namespace blink