Fix all relative includes to third_party.

core/src/fxcodec/codec/fx_codec_jpx_opj.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 <algorithm>
 #include <limits>
 #include <vector>
 
-#include "../../../../third_party/lcms2-2.6/include/lcms2.h"
-#include "../../../../third_party/libopenjpeg20/openjpeg.h"
 #include "../../../include/fxcodec/fx_codec.h"
 #include "../../../include/fxcrt/fx_safe_types.h"
 #include "codec_int.h"
+#include "third_party/lcms2-2.6/include/lcms2.h"
+#include "third_party/libopenjpeg20/openjpeg.h"
 
 static void fx_error_callback(const char* msg, void* client_data) {
   (void)client_data;
 }
 static void fx_warning_callback(const char* msg, void* client_data) {
   (void)client_data;
 }
 static void fx_info_callback(const char* msg, void* client_data) {
   (void)client_data;
 }
@@ skipping 850 matching lines @@
 bool CCodec_JpxModule::Decode(CJPX_Decoder* pDecoder,
                               uint8_t* dest_data,
                               int pitch,
                               const std::vector<uint8_t>& offsets) {
   return pDecoder->Decode(dest_data, pitch, offsets);
 }
 
 void CCodec_JpxModule::DestroyDecoder(CJPX_Decoder* pDecoder) {
   delete pDecoder;
 }