Move sandboxed_unpacker.{h,cc} from chrome/ to extensions/

extensions/test/test_content_utility_client.cc

+// Copyright 2015 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.
+
+#include "extensions/test/test_content_utility_client.h"
+
+namespace extensions {
+
+TestContentUtilityClient::TestContentUtilityClient() {
+}
+
+TestContentUtilityClient::~TestContentUtilityClient() {
+}
+
+void TestContentUtilityClient::UtilityThreadStarted() {
+  UtilityHandler::UtilityThreadStarted();
+}
+
+bool TestContentUtilityClient::OnMessageReceived(const IPC::Message& message) {
+  return utility_handler_.OnMessageReceived(message);
+}
+
+
+}  // namespace extensions