Headless: make URLRequestDispatcher aware of navigations

headless/app/shell_navigation_request.h

+// Copyright 2017 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 HEADLESS_PUBLIC_UTIL_HTTP_URL_FETCHER_H_
+#define HEADLESS_PUBLIC_UTIL_HTTP_URL_FETCHER_H_
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "headless/public/devtools/domains/page.h"
+#include "headless/public/util/navigation_request.h"
+
+namespace headless {
+class HeadlessShell;
+
+// Used in deterministic mode to make sure navigations and resource requests
+// complete in the order requested.
+class ShellNavigationRequest : public NavigationRequest {
+ public:
+  ShellNavigationRequest(base::WeakPtr<HeadlessShell> headless_shell,
+                         const page::NavigationRequestedParams& params);
+
+  ~ShellNavigationRequest() override;
+
+  void StartProcessing(base::Closure done_callback) override;
+
+ private:
+  // Note the navigation likely isn't done when this is called, however we
+  // expect it will have been committed and the initial resource load requested.
+  static void ProcessNavigationResult(
+      base::Closure done_callback,
+      std::unique_ptr<page::ProcessNavigationResult>);
+
+  base::WeakPtr<HeadlessShell> headless_shell_;
+  int navigation_id_;
+};
+
+}  // namespace headless
+
+#endif  // HEADLESS_PUBLIC_UTIL_HTTP_URL_FETCHER_H_