[chromedriver] Add page loading strategy to capabilities

chrome/test/chromedriver/chrome/page_load_strategy.h

Index: chrome/test/chromedriver/chrome/page_load_strategy.h
diff --git a/chrome/test/chromedriver/chrome/page_load_strategy.h b/chrome/test/chromedriver/chrome/page_load_strategy.h
new file mode 100644
index 0000000000000000000000000000000000000000..03e29f7fa816c0b379efc4c667803c6789d5818a
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+++ b/chrome/test/chromedriver/chrome/page_load_strategy.h
@@ -0,0 +1,45 @@
+// 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_PAGE_LOAD_STRATEGY_H_
+#define CHROME_TEST_CHROMEDRIVER_CHROME_PAGE_LOAD_STRATEGY_H_
+
+#include "chrome/test/chromedriver/chrome/status.h"
+
+struct BrowserInfo;
+class DevToolsClient;
+class JavaScriptDialogManager;
+class Status;
+class Timeout;
+
+class PageLoadStrategy {
+
+public:
+  enum LoadingState {
+    kUnknown,
+    kLoading,
+    kNotLoading,
+  };
+
+  virtual ~PageLoadStrategy() {}
+
+  static PageLoadStrategy* Create(
+      std::string strategy,
+      DevToolsClient* client,
+      const BrowserInfo* browser_info,
+      const JavaScriptDialogManager* dialog_manager);
+
+  virtual Status IsPendingNavigation(const std::string& frame_id,
+                                     const Timeout* timeout,
+                                     bool* is_pending) = 0;
+
+  virtual void set_timed_out(bool timed_out) = 0;
+
+  // Types of page load strategies.
+  static const char kNormal[];
+  static const char kNone[];
+  static const char kEager[];
+};
+
+#endif  // CHROME_TEST_CHROMEDRIVER_CHROME_PAGE_LOAD_STRATEGY_H_