Split fpdf_parser_objects.cpp into per-class .cpp/.h files.

core/src/fpdfapi/fpdf_parser/cdpf_null.cpp

Index: core/src/fpdfapi/fpdf_parser/cdpf_null.cpp
diff --git a/core/src/fpdfapi/fpdf_parser/cdpf_null.cpp b/core/src/fpdfapi/fpdf_parser/cdpf_null.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ba9440ae4d135c631da96f5b1b1c212cbdef315e
--- /dev/null
+++ b/core/src/fpdfapi/fpdf_parser/cdpf_null.cpp
@@ -0,0 +1,15 @@
+// Copyright 2016 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 "core/include/fpdfapi/cpdf_null.h"
+
+CPDF_Object::Type CPDF_Null::GetType() const {
+  return NULLOBJ;
+}
+
+CPDF_Object* CPDF_Null::Clone(FX_BOOL bDirect) const {
+  return new CPDF_Null;
+}