[inspector_protocol] Allow custom json parser.

lib/Object_cpp.template

Index: lib/Object_cpp.template
diff --git a/lib/Object_cpp.template b/lib/Object_cpp.template
index e3f18c3500e2b29422ec6db9f5f332e0e24fb471..46b0c94b2dddc3f95ceebd421620a48b85dca8c8 100644
--- a/lib/Object_cpp.template
+++ b/lib/Object_cpp.template
@@ -10,12 +10,13 @@ namespace {{namespace}} {
 
 std::unique_ptr<Object> Object::parse(protocol::Value* value, ErrorSupport* errors)
 {
-    protocol::DictionaryValue* object = DictionaryValue::cast(value);
-    if (!object) {
+    protocol::DictionaryValue* dictionary = DictionaryValue::cast(value);
+    if (!dictionary) {
         errors->addError("object expected");
         return nullptr;
     }
-    return wrapUnique(new Object(wrapUnique(static_cast<DictionaryValue*>(object->clone().release()))));
+    dictionary = static_cast<protocol::DictionaryValue*>(dictionary->clone().release());
+    return std::unique_ptr<Object>(new Object(std::unique_ptr<DictionaryValue>(dictionary)));
 }
 
 std::unique_ptr<protocol::DictionaryValue> Object::serialize() const
@@ -25,7 +26,7 @@ std::unique_ptr<protocol::DictionaryValue> Object::serialize() const
 
 std::unique_ptr<Object> Object::clone() const
 {
-    return wrapUnique(new Object(DictionaryValue::cast(m_object->clone())));
+    return std::unique_ptr<Object>(new Object(DictionaryValue::cast(m_object->clone())));
 }
 
 Object::Object(std::unique_ptr<protocol::DictionaryValue> object) : m_object(std::move(object)) { }