Transform XML tree viewer to blink-in-js implementation.

Source/core/xml/DocumentXMLTreeViewer.h

Index: Source/core/xml/DocumentXMLTreeViewer.h
diff --git a/Source/core/xml/DocumentXMLTreeViewer.h b/Source/core/xml/DocumentXMLTreeViewer.h
new file mode 100644
index 0000000000000000000000000000000000000000..843e5b74713551b6f0b65bfb55898eb540227f1d
--- /dev/null
+++ b/Source/core/xml/DocumentXMLTreeViewer.h
@@ -0,0 +1,17 @@
+// 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.
+
+#ifndef DocumentXMLTreeViewer_h
+#define DocumentXMLTreeViewer_h
+
+namespace blink {
+
+// FIXME: This header file is needed because auto-generated binding tries to include
+// DocumentXMLTreeViewer.h. We should improve the IDL compiler and remove this file.
+class DocumentXMLTreeViewer {
+};
+
+} // namespace blink
+
+#endif