Http compression integration tests; combatibility with Netty (#1239)

* Http compression integration tests; combatibility with Netty

servicetalk-http-netty/src/test/java/io/servicetalk/http/api/HeaderUtilsPassThrough.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2020 Apple Inc. and the ServiceTalk project authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.servicetalk.http.api;
+
+import io.servicetalk.encoding.api.ContentCodec;
+
+import java.util.Collection;
+import javax.annotation.Nullable;
+
+/**
+ * Pass-through for pkg-private function.
+ */
+public final class HeaderUtilsPassThrough {
+
+    private HeaderUtilsPassThrough() {
+    }
+
+    @Nullable
+    public static ContentCodec encodingFor(final Collection<ContentCodec> allowedList,
+                                    @Nullable final CharSequence name) {
+        return HeaderUtils.encodingFor(allowedList, name);
+    }
+}