Fix all relative includes to third_party.

core/src/fxcodec/codec/fx_codec.cpp

 // 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
 
 #include "../../../include/fxcodec/fx_codec.h"
 
 #include <cmath>
 
-#include "../../../../third_party/base/logging.h"
 #include "../../../include/fxcrt/fx_safe_types.h"
 #include "codec_int.h"
+#include "third_party/base/logging.h"
 
 CCodec_ModuleMgr::CCodec_ModuleMgr()
     : m_pBasicModule(new CCodec_BasicModule),
       m_pFaxModule(new CCodec_FaxModule),
       m_pJpegModule(new CCodec_JpegModule),
       m_pJpxModule(new CCodec_JpxModule),
       m_pJbig2Module(new CCodec_Jbig2Module),
       m_pIccModule(new CCodec_IccModule),
       m_pFlateModule(new CCodec_FlateModule) {}
 
@@ skipping 415 matching lines @@
     int nComps,
     int bpc) {
   CCodec_RLScanlineDecoder* pRLScanlineDecoder = new CCodec_RLScanlineDecoder;
   if (!pRLScanlineDecoder->Create(src_buf, src_size, width, height, nComps,
                                   bpc)) {
     delete pRLScanlineDecoder;
     return NULL;
   }
   return pRLScanlineDecoder;
 }