service worker: Add CHECKs for investigating null http info bug.

content/browser/service_worker/embedded_worker_test_helper.h

 // Copyright 2014 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 CONTENT_BROWSER_SERVICE_WORKER_EMBEDDED_WORKER_TEST_HELPER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_EMBEDDED_WORKER_TEST_HELPER_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/containers/hash_tables.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/optional.h"
 #include "base/time/time.h"
 #include "content/common/service_worker/embedded_worker.mojom.h"
 #include "content/common/service_worker/service_worker_event_dispatcher.mojom.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_test_sink.h"
 #include "mojo/public/cpp/bindings/binding.h"
+#include "net/http/http_response_info.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "services/service_manager/public/cpp/interface_registry.h"
 #include "services/service_manager/public/interfaces/interface_provider.mojom.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 class GURL;
 
 namespace service_manager {
 class InterfaceProvider;
@@ skipping 111 matching lines @@
 
   // Only used for tests that force creating a new render process.
   int new_render_process_id() const { return new_mock_render_process_id_; }
 
   TestBrowserContext* browser_context() { return browser_context_.get(); }
 
   base::WeakPtr<EmbeddedWorkerTestHelper> AsWeakPtr() {
     return weak_factory_.GetWeakPtr();
   }
 
+  static net::HttpResponseInfo CreateHttpResponseInfo();
+
  protected:
   // Called when StartWorker, StopWorker and SendMessageToWorker message
   // is sent to the embedded worker. Override if necessary. By default
   // they verify given parameters and:
   // - OnStartWorker calls SimulateWorkerStarted
   // - OnStopWorker calls SimulateWorkerStoped
   // - OnSendMessageToWorker calls the message's respective On*Event handler
   virtual void OnStartWorker(int embedded_worker_id,
                              int64_t service_worker_version_id,
                              const GURL& scope,
@@ skipping 123 matching lines @@
   std::unique_ptr<MockType> mock =
       base::MakeUnique<MockType>(std::forward<Args>(args)...);
   MockType* mock_rawptr = mock.get();
   RegisterMockInstanceClient(std::move(mock));
   return mock_rawptr;
 }
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_EMBEDDED_WORKER_TEST_HELPER_H_