Revamp TabNavigation class

chrome/browser/sessions/session_types_test_helper.h

Index: chrome/browser/sessions/session_types_test_helper.h
diff --git a/chrome/browser/sessions/session_types_test_helper.h b/chrome/browser/sessions/session_types_test_helper.h
new file mode 100644
index 0000000000000000000000000000000000000000..d9b7a825cf21bcec1b725ecc446ba6a980360138
--- /dev/null
+++ b/chrome/browser/sessions/session_types_test_helper.h
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 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_BROWSER_SESSIONS_SESSION_TYPES_TEST_HELPER_H_
+#define CHROME_BROWSER_SESSIONS_SESSION_TYPES_TEST_HELPER_H_
+
+class TabNavigation;
+
+struct SessionTypesTestHelper {
+  // Compares everything except index, unique ID, post ID, and
+  // timestamp.
+  static void AssertNavigationEquals(const TabNavigation& expected,
+                                     const TabNavigation& actual);
+};
+
+#endif  // CHROME_BROWSER_SESSIONS_SESSION_TYPES_TEST_HELPER_H_