[inspector] migrate Runtime to new style

src/inspector/v8-value-copier.h

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_INSPECTOR_V8VALUECOPIER_H_
 #define V8_INSPECTOR_V8VALUECOPIER_H_
 
+#include "src/inspector/protocol/Protocol.h"
+
 #include "include/v8.h"
 
 namespace v8_inspector {
 
 v8::MaybeLocal<v8::Value> copyValueFromDebuggerContext(
     v8::Isolate*, v8::Local<v8::Context> debuggerContext,
     v8::Local<v8::Context> toContext, v8::Local<v8::Value>);
 v8::Maybe<bool> createDataProperty(v8::Local<v8::Context>,
                                    v8::Local<v8::Object>,
                                    v8::Local<v8::Name> key,
                                    v8::Local<v8::Value>);
 v8::Maybe<bool> createDataProperty(v8::Local<v8::Context>, v8::Local<v8::Array>,
                                    int index, v8::Local<v8::Value>);
 
+protocol::Response toProtocolValue(v8::Local<v8::Context>, v8::Local<v8::Value>,
+                                   std::unique_ptr<protocol::Value>* result);
+
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_V8VALUECOPIER_H_