Fix static initializers.

core/src/fpdfapi/fpdf_page/pageint.h

 // Copyright 2014 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_SRC_FPDFAPI_FPDF_PAGE_PAGEINT_H_
 #define CORE_SRC_FPDFAPI_FPDF_PAGE_PAGEINT_H_
 
 #include <map>
@@ skipping 136 matching lines @@
   void RestoreStates(CPDF_AllStates*);
   CPDF_Font* FindFont(const CFX_ByteString& name);
   CPDF_ColorSpace* FindColorSpace(const CFX_ByteString& name);
   CPDF_Pattern* FindPattern(const CFX_ByteString& name, FX_BOOL bShading);
   CPDF_Object* FindResourceObj(const CFX_ByteStringC& type,
                                const CFX_ByteString& name);
 
  protected:
   using OpCodes =
       std::unordered_map<FX_DWORD, void (CPDF_StreamContentParser::*)()>;
-  static const OpCodes s_OpCodes;
+  static OpCodes InitializeOpCodes();
 
   void Handle_CloseFillStrokePath();
   void Handle_FillStrokePath();
   void Handle_CloseEOFillStrokePath();
   void Handle_EOFillStrokePath();
   void Handle_BeginMarkedContent_Dictionary();
   void Handle_BeginImage();
   void Handle_BeginMarkedContent();
   void Handle_BeginText();
   void Handle_CurveTo_123();
@@ skipping 281 matching lines @@
 
  private:
   CPDF_ColorSpace* m_pBaseCS;
   CPDF_CountedColorSpace* m_pCountedBaseCS;
 };
 
 void PDF_ReplaceAbbr(CPDF_Object* pObj);
 bool IsPathOperator(const uint8_t* buf, size_t len);
 
 #endif  // CORE_SRC_FPDFAPI_FPDF_PAGE_PAGEINT_H_