Use mojo for Chrome Loading, Part 1

content/browser/loader/mojo_async_resource_handler_test_util.h

+// Copyright 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 CONTENT_BROWSER_LOADER_MOJO_ASYNC_RESOURCE_HANDLER_TEST_UTIL_H_
+#define CONTENT_BROWSER_LOADER_MOJO_ASYNC_RESOURCE_HANDLER_TEST_UTIL_H_
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "content/common/resource_request_completion_status.h"
+#include "content/common/url_loader.mojom.h"
+#include "content/public/common/resource_response.h"
+#include "mojo/public/c/system/data_pipe.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace content {
+
+class FakeURLLoaderClient final : public mojom::URLLoaderClient {

[mmenke, 2016/07/20 19:08:42]

Class needs to be documented.

[mmenke, 2016/07/20 19:08:42]

Is this really a fake client?  I guess it doesn't drive the reading of the
body...

[mmenke, 2016/07/20 19:08:42]

Can you call this fake_url_loader_client.h?  test_util seems too general.

[yhirano, 2016/07/21 14:50:20]

I don't feel it so unnatural but maybe my wording is not good. What should we
call this class instead? Stub?

[yhirano, 2016/07/21 14:50:21]

Done.

[yhirano, 2016/07/21 14:50:21]

Will do when we agree on the class name.

+ public:
+  FakeURLLoaderClient();
+  ~FakeURLLoaderClient() override;
+
+  void OnReceiveResponse(const ResourceResponseHead& response_head) override;
+  void OnStartLoadingResponseBody(
+      mojo::ScopedDataPipeConsumerHandle body) override;
+  void OnComplete(const ResourceRequestCompletionStatus& status) override;
+
+  bool has_received_response() const { return has_received_response_; }
+  bool has_received_completion() const { return has_received_completion_; }
+  const ResourceResponseHead& response_head() const { return response_head_; }
+  mojo::DataPipeConsumerHandle response_body() { return response_body_.get(); }
+  const ResourceRequestCompletionStatus& completion_status() const {
+    return completion_status_;
+  }
+
+  mojom::URLLoaderClientPtr CreateInterfacePtrAndBind() {

[mmenke, 2016/07/20 19:08:42]

Shouldn't inline a non-trivial method.

[yhirano, 2016/07/21 14:50:21]

Done.

+    return binding_.CreateInterfacePtrAndBind();
+  }
+  void Unbind();
+
+  void set_quit_closure(const base::Closure& quit_closure) {

[mmenke, 2016/07/20 19:08:42]

Not at all clear when this is called. Also, is there any fundamental property of
this that forces it to be a RunLoop::QuitClosure?

[yhirano, 2016/07/21 14:50:21]

Done.

+    quit_closure_ = quit_closure;
+  }
+
+ private:
+  mojo::Binding<mojom::URLLoaderClient> binding_;
+  ResourceResponseHead response_head_;
+  mojo::ScopedDataPipeConsumerHandle response_body_;
+  ResourceRequestCompletionStatus completion_status_;
+  bool has_received_response_ = false;
+  bool has_received_completion_ = false;
+  base::Closure quit_closure_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeURLLoaderClient);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_LOADER_MOJO_ASYNC_RESOURCE_HANDLER_TEST_UTIL_H_