Move modules-related attributes out from Window.idl.

Source/modules/mediastream/DOMWindowMediaStream.h

Index: Source/modules/mediastream/DOMWindowMediaStream.h
diff --git a/Source/modules/mediastream/DOMWindowMediaStream.h b/Source/modules/mediastream/DOMWindowMediaStream.h
new file mode 100644
index 0000000000000000000000000000000000000000..94bca8d36f71a764251e575da756fecfd4ce4ef4
--- /dev/null
+++ b/Source/modules/mediastream/DOMWindowMediaStream.h
@@ -0,0 +1,27 @@
+// 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.
+
+#ifndef DOMWindowMediaStream_h
+#define DOMWindowMediaStream_h
+
+#include "core/frame/DOMWindowProperty.h"
+#include "platform/Supplementable.h"
+
+namespace WebCore {
+
+class DOMWindow;
+
+class DOMWindowMediaStream FINAL : public NoBaseWillBeGarbageCollectedFinalized<DOMWindowMediaStream>, public WillBeHeapSupplement<DOMWindow>, public DOMWindowProperty {

[Inactive, 2014/05/05 22:19:58]

This is a class corresponding to a partial interface. Those should not need to
subclass anything.

[Inactive, 2014/05/06 14:42:43]

I missed that your partial interface only contains "Constructor" attributes. In
this case, you shouldn't need this class at all. Hopefully, you shouldn't even
need this header but the bindings generator might need some tweaking.

[c.shu, 2014/05/06 15:01:12]

Done.

+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DOMWindowMediaStream);
+public:

[Inactive, 2014/05/05 22:19:58]

Where are the static functions corresponding to the IDL operations? How does
this build?

[c.shu, 2014/05/06 15:01:12]

Done.

+    virtual ~DOMWindowMediaStream();
+private:
+    explicit DOMWindowMediaStream(DOMWindow&);
+    DOMWindow& m_window;

[Inactive, 2014/05/05 22:19:58]

Should not be needed.

[c.shu, 2014/05/06 15:01:12]

Done.

+};
+
+} // namespace WebCore
+
+#endif // DOMWindowMediaStream_h
+