Pass v8::Isolate to PDFium at init time.

fpdfsdk/src/fpdfview.cpp

Index: fpdfsdk/src/fpdfview.cpp
diff --git a/fpdfsdk/src/fpdfview.cpp b/fpdfsdk/src/fpdfview.cpp
index 3603af6d91218cbe5f4de7778eaad3910a63dc22..0bf6426b66fb2e8aaac3bdb71188ec5aaa3f5e61 100644
--- a/fpdfsdk/src/fpdfview.cpp
+++ b/fpdfsdk/src/fpdfview.cpp
@@ -14,6 +14,7 @@
 #include "../include/fsdk_define.h"
 #include "../include/fsdk_mgr.h"
 #include "../include/fsdk_rendercontext.h"
+#include "../include/jsapi/fxjs_v8.h"
 
 CPDF_CustomAccess::CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess) {
   if (pFileAccess)
@@ -109,6 +110,10 @@ DLLEXPORT void STDCALL FPDF_InitLibraryWithConfig(
     pModuleMgr->LoadEmbeddedCNS1CMaps();
     pModuleMgr->LoadEmbeddedKorea1CMaps();
   }
+  if (cfg && cfg->version >= 2) {

[Lei Zhang, 2015/10/02 22:02:15]

Do we want to nag callers using API version 1, or any other unknown version?

[Tom Sepez, 2015/10/02 22:46:50]

I want to continue to seamlessly support those embedders that rely on pdfium to
create their isolates.  There's no reason for them to move ahead just yet.

+    FXJS_Initialize(cfg->m_v8EmbedderSlot,
+                    reinterpret_cast<v8::Isolate*>(cfg->m_pIsolate));
+  }
 }
 
 DLLEXPORT void STDCALL FPDF_DestroyLibrary() {