Initialize V8 in PDFium from external files (in-renderer process only).

ppapi/cpp/private/pdf.h

Index: ppapi/cpp/private/pdf.h
diff --git a/ppapi/cpp/private/pdf.h b/ppapi/cpp/private/pdf.h
index 586952c98bee71d83ef7e591826604fd057fd08d..d7a2d7416a9142ba6d8605030325671cc4ce0619 100644
--- a/ppapi/cpp/private/pdf.h
+++ b/ppapi/cpp/private/pdf.h
@@ -63,6 +63,12 @@ class PDF {
                               const char* selected_text);
   static void SetLinkUnderCursor(const InstanceHandle& instance,
                                  const char* url);
+#if !defined(OS_ANDROID) && defined(V8_USE_EXTERNAL_STARTUP_DATA)
+  static const char* GetV8NativesData(const InstanceHandle& instance);
+  static const char* GetV8SnapshotData(const InstanceHandle& instance);
+  static int GetV8NativesSize(const InstanceHandle& instance);
+  static int GetV8SnapshotSize(const InstanceHandle& instance);
+#endif  // #if !defined(OS_ANDROID) && defined(V8_USE_EXTERNAL_STARTUP_DATA)
 };
 
 }  // namespace pp