[inspector_protocol] Introduce protocol::Serializable

templates/Imported_h.template

 // This file is generated
 
 // Copyright (c) 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.
 
 #ifndef {{"_".join(config.protocol.namespace)}}_{{domain.domain}}_imported_h
 #define {{"_".join(config.protocol.namespace)}}_{{domain.domain}}_imported_h
 
 #include {{format_include(config.protocol.package, "Protocol")}}
 {% if config.imported.header %}
 #include {{format_include(config.imported.header)}}
 {% else %}
 #include {{format_include(config.imported.package, domain.domain)}}
 {% endif %}
 
 {% for namespace in config.protocol.namespace %}
 namespace {{namespace}} {
 {% endfor %}
   {% for type in domain.types %}
     {% if not (type.type == "object") or not ("properties" in type) or not (type.exported) %}{% continue %}{% endif %}
 
 template<>
 struct ValueConversions<{{"::".join(config.imported.namespace)}}::{{domain.domain}}::API::{{type.id}}> {
-    static std::unique_ptr<{{"::".join(config.imported.namespace)}}::{{domain.domain}}::API::{{type.id}}> parse(protocol::Value* value, ErrorSupport* errors)
+    static std::unique_ptr<{{"::".join(config.imported.namespace)}}::{{domain.domain}}::API::{{type.id}}> fromValue(protocol::Value* value, ErrorSupport* errors)
     {
         if (!value) {
             errors->addError("value expected");
             return nullptr;
         }
-        String json = value->toJSONString();
+        String json = value->serialize();
         auto result = {{"::".join(config.imported.namespace)}}::{{domain.domain}}::API::{{type.id}}::fromJSONString({{config.imported.to_imported_string % "json"}});
         if (!result)
             errors->addError("cannot parse");
         return result;
     }
 
-    static std::unique_ptr<protocol::Value> serialize(const {{"::".join(config.imported.namespace)}}::{{domain.domain}}::API::{{type.id}}* value)
+    static std::unique_ptr<protocol::Value> toValue(const {{"::".join(config.imported.namespace)}}::{{domain.domain}}::API::{{type.id}}* value)
     {
         auto json = value->toJSONString();
         return SerializedValue::create({{config.imported.from_imported_string % "std::move(json)"}});
     }
 
-    static std::unique_ptr<protocol::Value> serialize(const std::unique_ptr<{{"::".join(config.imported.namespace)}}::{{domain.domain}}::API::{{type.id}}>& value)
+    static std::unique_ptr<protocol::Value> toValue(const std::unique_ptr<{{"::".join(config.imported.namespace)}}::{{domain.domain}}::API::{{type.id}}>& value)
     {
-        return serialize(value.get());
+        return toValue(value.get());
     }
 };
   {% endfor %}
 
 {% for namespace in config.protocol.namespace %}
 } // namespace {{namespace}}
 {% endfor %}
 
 #endif // !defined({{"_".join(config.protocol.namespace)}}_{{domain.domain}}_imported_h)