Pass v8::Isolate to PDFium at init time.

public/fpdfview.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
 
 // NOTE: External docs refer to this file as "fpdfview.h", so do not rename
 // despite lack of consitency with other public files.
 
 #ifndef PUBLIC_FPDFVIEW_H_
@@ skipping 112 matching lines @@
 //          None
 // Return value:
 //          None.
 // Comments:
 //          Convenience function to call FPDF_InitLibraryWithConfig() for
 //          backwards comatibility purposes.
 DLLEXPORT void STDCALL FPDF_InitLibrary();
 
 // Process-wide options for initializing library.
 typedef struct FPDF_LIBRARY_CONFIG_ {
-  // Version number of the interface. Currently must be 1.
+  // Version number of the interface. Currently must be 2.
   int version;
 
   // Array of paths to scan in place of the defaults when using built-in
   // FXGE font loading code. The array is terminated by a NULL pointer.
   // The Array may be NULL itself to use the default paths. May be ignored
   // entirely depending upon the platform.
   const char** m_pUserFontPaths;
+
+  // Version 2.
+
+  // pointer to the v8::Isolate to use, or NULL to force PDFium to create one.
+  void* m_pIsolate;
+
+  // The embedder data slot to use in the v8::Isolate to store PDFium's
+  // per-isolate data. The value needs to be between 0 and
+  // v8::Internals::kNumIsolateDataLots (exclusive). Note that 0 is fine
+  // for most embedders.
+  unsigned int m_v8EmbedderSlot;
 } FPDF_LIBRARY_CONFIG;
 
 // Function: FPDF_InitLibraryWithConfig
 //          Initialize the FPDFSDK library
 // Parameters:
 //          cfg - configuration information as above.
 // Return value:
 //          None.
 // Comments:
 //          You have to call this function before you can call any PDF
@@ skipping 671 matching lines @@
 DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDest(FPDF_DOCUMENT document,
                                               int index,
                                               void* buffer,
                                               long* buflen);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif  // PUBLIC_FPDFVIEW_H_