[Bindings] Create and use V8 context snapshots

third_party/WebKit/Source/bindings/core/v8/V8Initializer.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 18 matching lines @@
 #include "core/CoreExport.h"
 #include "platform/wtf/Allocator.h"
 #include "v8/include/v8.h"
 
 namespace blink {
 
 class CORE_EXPORT V8Initializer {
   STATIC_ONLY(V8Initializer);
 
  public:
-  static void InitializeMainThread();
+  static void InitializeMainThread(intptr_t* reference_table);
   static void InitializeWorker(v8::Isolate*);
 
   static void ReportRejectedPromisesOnMainThread();
   static void MessageHandlerInMainThread(v8::Local<v8::Message>,
                                          v8::Local<v8::Value>);
 };
 
 }  // namespace blink
 
 #endif  // V8Initializer_h