Merge to XFA: Allow compiling PDFium without V8.

fpdfsdk/src/javascript/JS_Runtime.cpp

Index: fpdfsdk/src/javascript/JS_Runtime.cpp
diff --git a/fpdfsdk/src/javascript/JS_Runtime.cpp b/fpdfsdk/src/javascript/JS_Runtime.cpp
index 8a0d6666bb5de5b479275acb32298aaada685c3d..1d2fa84323bd200bde57e9c7fa47e406faf720d6 100644
--- a/fpdfsdk/src/javascript/JS_Runtime.cpp
+++ b/fpdfsdk/src/javascript/JS_Runtime.cpp
@@ -33,6 +33,11 @@
 v8::Global<v8::ObjectTemplate>& _getGlobalObjectTemplate(v8::Isolate* pIsolate);
 
 // static
+void IJS_Runtime::Initialize(unsigned int slot, void* isolate) {
+  FXJS_Initialize(slot, reinterpret_cast<v8::Isolate*>(isolate));
+}
+
+// static
 IJS_Runtime* IJS_Runtime::Create(CPDFDoc_Environment* pEnv) {
   return new CJS_Runtime(pEnv);
 }