Persist offline page info in a navigation entry if needed

components/sessions/core/serialized_navigation_entry_unittest.cc

 // Copyright (c) 2013 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.
 
 #include "components/sessions/core/serialized_navigation_entry.h"
 
 #include <stdint.h>
 
 #include <cstddef>
 #include <memory>
@@ skipping 114 matching lines @@
       new_navigation.transition_type(), test_data::kTransitionType));
   EXPECT_EQ(test_data::kHasPostData, new_navigation.has_post_data());
   EXPECT_EQ(test_data::kOriginalRequestURL,
             new_navigation.original_request_url());
   EXPECT_EQ(test_data::kIsOverridingUserAgent,
             new_navigation.is_overriding_user_agent());
   EXPECT_EQ(test_data::kTimestamp, new_navigation.timestamp());
   EXPECT_EQ(test_data::kSearchTerms, new_navigation.search_terms());
   EXPECT_EQ(test_data::kHttpStatusCode, new_navigation.http_status_code());
 
+  ASSERT_EQ(2U, new_navigation.extended_info_map().size());
+  ASSERT_EQ(1U, new_navigation.extended_info_map().count(
+                    test_data::kExtendedInfoKey1));
+  EXPECT_EQ(
+      test_data::kExtendedInfoValue1,
+      new_navigation.extended_info_map().at(test_data::kExtendedInfoKey1));
+  ASSERT_EQ(1U, new_navigation.extended_info_map().count(
+                    test_data::kExtendedInfoKey2));
+  EXPECT_EQ(
+      test_data::kExtendedInfoValue2,
+      new_navigation.extended_info_map().at(test_data::kExtendedInfoKey2));
+
   // Fields that are not written to the pickle.
   EXPECT_EQ(0, new_navigation.unique_id());
   EXPECT_EQ(std::string(), new_navigation.encoded_page_state());
   EXPECT_EQ(-1, new_navigation.post_id());
   EXPECT_EQ(0U, new_navigation.redirect_chain().size());
 }
 
 // Create a SerializedNavigationEntry, then create a sync protocol buffer from
 // it.  The protocol buffer should have matching fields to the
 // SerializedNavigationEntry (when applicable).
@@ skipping 75 matching lines @@
           constructed_nav.transition_type();
 
       EXPECT_TRUE(ui::PageTransitionTypeIncludingQualifiersIs(
           constructed_transition, transition));
     }
   }
 }
 
 }  // namespace
 }  // namespace sessions