[chromedriver] Add page loading strategy to capabilities

chrome/test/chromedriver/chrome/navigation_tracker_none.h

+// Copyright (c) 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 CHROME_TEST_CHROMEDRIVER_CHROME_NAVIGATION_TRACKER_NONE_H_
+#define CHROME_TEST_CHROMEDRIVER_CHROME_NAVIGATION_TRACKER_NONE_H_
+
+#include "chrome/test/chromedriver/chrome/page_loading_strategy.h"
+
+class Timeout;
+class Status;
+
+class NavigationTrackerNone : public PageLoadingStrategy {
+public:
+  ~NavigationTrackerNone() override;
+
+  NavigationTrackerNone() : timed_out_(false) {}
+
+  // Overriden from PageLoadingStrategy:
+  Status IsPendingNavigation(const std::string& frame_id,
+                             const Timeout* timeout,
+                             bool* is_pending) override;
+  void set_timed_out(bool timed_out) override;
+private:
+  bool timed_out_;
+};
+
+#endif // CHROME_TEST_CHROMEDRIVER_CHROME_NAVIGATION_TRACKER_NONE_H_