Generate XFA node classes

This CL adds concrete classes for each of the XFA Node types.

Change-Id: Ieac8e2fcd5d13c61daa27fc63e3d80abb7aa7a29
Reviewed-on: https://pdfium-review.googlesource.com/18271
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
diff --git a/xfa/fxfa/parser/cxfa_documentassembly.cpp b/xfa/fxfa/parser/cxfa_documentassembly.cpp
new file mode 100644
index 0000000..c8b5763
--- /dev/null
+++ b/xfa/fxfa/parser/cxfa_documentassembly.cpp
@@ -0,0 +1,29 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "xfa/fxfa/parser/cxfa_documentassembly.h"
+
+namespace {
+
+const XFA_Attribute kAttributeData[] = {
+    XFA_Attribute::Desc, XFA_Attribute::Lock, XFA_Attribute::Unknown};
+
+constexpr wchar_t kName[] = L"documentAssembly";
+
+}  // namespace
+
+CXFA_DocumentAssembly::CXFA_DocumentAssembly(CXFA_Document* doc,
+                                             XFA_XDPPACKET packet)
+    : CXFA_Node(doc,
+                packet,
+                XFA_XDPPACKET_Config,
+                XFA_ObjectType::ContentNode,
+                XFA_Element::DocumentAssembly,
+                nullptr,
+                kAttributeData,
+                kName) {}
+
+CXFA_DocumentAssembly::~CXFA_DocumentAssembly() {}