Move core/include/fpdfapi/fpdf_pageobj.h into core/fpdfapi.

core/fpdfapi/fpdf_page/cpdf_contentmark.h

+// 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
+
+#ifndef CORE_FPDFAPI_FPDF_PAGE_CPDF_CONTENTMARK_H_
+#define CORE_FPDFAPI_FPDF_PAGE_CPDF_CONTENTMARK_H_
+
+#include "core/fpdfapi/fpdf_page/cpdf_contentmarkdata.h"
+#include "core/include/fxcrt/fx_basic.h"
+
+class CPDF_ContentMark : public CFX_CountRef<CPDF_ContentMarkData> {
+ public:
+  int GetMCID() const { return m_pObject ? m_pObject->GetMCID() : -1; }
+
+  FX_BOOL HasMark(const CFX_ByteStringC& mark) const;
+
+  FX_BOOL LookupMark(const CFX_ByteStringC& mark,
+                     CPDF_Dictionary*& pDict) const;
+};
+
+#endif  // CORE_FPDFAPI_FPDF_PAGE_CPDF_CONTENTMARK_H_