core/include/fdpfapi cleanup Part I.

core/fpdfapi/ipdf_rendermodule.h

Index: core/fpdfapi/ipdf_rendermodule.h
diff --git a/core/fpdfapi/ipdf_rendermodule.h b/core/fpdfapi/ipdf_rendermodule.h
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+++ b/core/fpdfapi/ipdf_rendermodule.h
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+// 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_IPDF_RENDERMODULE_H_
+#define CORE_FPDFAPI_IPDF_RENDERMODULE_H_
+
+class CPDF_DocRenderData;
+class CPDF_Document;
+class CPDF_Page;
+class CPDF_PageRenderCache;
+
+class IPDF_RenderModule {
+ public:
+  virtual ~IPDF_RenderModule() {}
+
+  virtual CPDF_DocRenderData* CreateDocData(CPDF_Document* pDoc) = 0;
+  virtual void DestroyDocData(CPDF_DocRenderData* pDocRenderData) = 0;
+  virtual void ClearDocData(CPDF_DocRenderData* pDocRenderData) = 0;
+
+  virtual CPDF_DocRenderData* GetRenderData() = 0;
+
+  virtual CPDF_PageRenderCache* CreatePageCache(CPDF_Page* pPage) = 0;
+  virtual void DestroyPageCache(CPDF_PageRenderCache* pCache) = 0;
+};
+
+#endif  // CORE_FPDFAPI_IPDF_RENDERMODULE_H_