[Bindings] Create and use V8 context snapshots

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file is for functions that are used only by generated code.
 // CAUTION:
 // All functions defined in this file should be used by generated code only.
 // If you want to use them from hand-written code, please find appropriate
 // location and move them to that location.
 
@@ skipping 47 matching lines @@
   const v8::FunctionCallbackInfo<v8::Value>& info_;
   ExceptionState& exception_state_;
 };
 
 using InstallTemplateFunction =
     void (*)(v8::Isolate* isolate,
              const DOMWrapperWorld& world,
              v8::Local<v8::FunctionTemplate> interface_template);
 
 using InstallRuntimeEnabledFunction =
-    void (*)(v8::Isolate* isolate,
-             const DOMWrapperWorld& world,
+    void (*)(v8::Isolate*,
+             const DOMWrapperWorld&,
              v8::Local<v8::Object> instance,
              v8::Local<v8::Object> prototype,
              v8::Local<v8::Function> interface);
 
+using InstallRuntimeEnabledOnTemplateFunction = InstallTemplateFunction;
+
 }  // namespace blink
 
 #endif  // GeneratedCodeHelper_h