Re-enable MSVC warning 4800 for compiling with chromium_code

fpdfsdk/include/fsdk_baseannot.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 FPDFSDK_INCLUDE_FSDK_BASEANNOT_H_
 #define FPDFSDK_INCLUDE_FSDK_BASEANNOT_H_
 
 #if _FX_OS_ == _FX_ANDROID_
@@ skipping 130 matching lines @@
 
   void SetContents(const CFX_WideString& sContents);
   CFX_WideString GetContents() const;
 
   void SetAnnotName(const CFX_WideString& sName);
   CFX_WideString GetAnnotName() const;
 
   void SetModifiedDate(const FX_SYSTEMTIME& st);
   FX_SYSTEMTIME GetModifiedDate() const;
 
-  void SetFlags(int nFlags);
-  int GetFlags() const;
+  void SetFlags(FX_DWORD nFlags);
+  FX_DWORD GetFlags() const;
 
   void SetAppState(const CFX_ByteString& str);
   CFX_ByteString GetAppState() const;
 
   void SetStructParent(int key);
   int GetStructParent() const;
 
   // border
   void SetBorderWidth(int nWidth);
   int GetBorderWidth() const;
@@ skipping 50 matching lines @@
                        const CFX_ByteString& sAPState = "");
 
  protected:
   CPDF_Annot* m_pAnnot;
 
  private:
   FX_BOOL CreateFormFiller();
 };
 
 #endif  // FPDFSDK_INCLUDE_FSDK_BASEANNOT_H_