Switch RemoteWindowProxy to use v8::Context::NewRemoteContext.

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

Index: third_party/WebKit/Source/bindings/core/v8/RemoteWindowProxy.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/RemoteWindowProxy.h b/third_party/WebKit/Source/bindings/core/v8/RemoteWindowProxy.h
index d85780fc5314d70a4c847fe33fa65b381d15f82b..ad85a749d4b751ef9303348763b0ad10cd0fc639 100644
--- a/third_party/WebKit/Source/bindings/core/v8/RemoteWindowProxy.h
+++ b/third_party/WebKit/Source/bindings/core/v8/RemoteWindowProxy.h
@@ -31,9 +31,10 @@
 #ifndef RemoteWindowProxy_h
 #define RemoteWindowProxy_h
 
+#include <v8.h>
 #include "bindings/core/v8/DOMWrapperWorld.h"
+#include "bindings/core/v8/WindowProxy.h"
 #include "core/frame/RemoteFrame.h"
-#include <v8.h>
 
 namespace blink {
 
@@ -42,7 +43,6 @@ class RemoteWindowProxy final : public WindowProxy {
  public:
   static RemoteWindowProxy* create(v8::Isolate* isolate,
                                    RemoteFrame& frame,
-
                                    RefPtr<DOMWrapperWorld> world) {
     return new RemoteWindowProxy(isolate, frame, std::move(world));
   }
@@ -58,6 +58,8 @@ class RemoteWindowProxy final : public WindowProxy {
   // prototype chain do not get fully initialized yet, e.g. the window
   // wrapper is not yet associated with the native DOMWindow object.
   void createContext();
+
+  void setupWindowPrototypeChain();
 };
 
 }  // namespace blink