Add Unseen state to Reading List Entry

components/reading_list/ios/reading_list_store_unittest.mm

 // Copyright 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.
 
 #include "components/reading_list/ios/reading_list_store.h"
 
 #include <map>
 #include <set>
 
 #include "base/bind.h"
@@ skipping 160 matching lines @@
 
 TEST_F(ReadingListStoreTest, SaveOneUnread) {
   ReadingListEntry entry(GURL("http://unread.example.com/"), "unread title");
   reading_list_store_->SaveEntry(entry);
   AssertCounts(1, 0, 0, 0, 0);
   syncer::EntityData* data = put_multimap_["http://unread.example.com/"].get();
   const sync_pb::ReadingListSpecifics& specifics =
       data->specifics.reading_list();
   EXPECT_EQ(specifics.title(), "unread title");
   EXPECT_EQ(specifics.url(), "http://unread.example.com/");
-  EXPECT_EQ(specifics.status(), sync_pb::ReadingListSpecifics::UNREAD);
+  EXPECT_EQ(specifics.status(), sync_pb::ReadingListSpecifics::UNSEEN);
 }
 
 TEST_F(ReadingListStoreTest, SyncMergeOneEntry) {
   syncer::EntityDataMap remote_input;
   ReadingListEntry entry(GURL("http://read.example.com/"), "read title");
   entry.SetRead(true);
   std::unique_ptr<sync_pb::ReadingListSpecifics> specifics =
       entry.AsReadingListSpecifics();
 
   syncer::EntityData data;
@@ skipping 90 matching lines @@
 TEST_F(ReadingListStoreTest, ApplySyncChangesOneRemove) {
   syncer::EntityChangeList delete_changes;
   delete_changes.push_back(
       syncer::EntityChange::CreateDelete("http://read.example.com/"));
   syncer::SyncError error = reading_list_store_->ApplySyncChanges(
       reading_list_store_->CreateMetadataChangeList(), delete_changes);
   AssertCounts(0, 0, 0, 1, 0);
   EXPECT_EQ(sync_removed_.size(), 1u);
   EXPECT_EQ(sync_removed_.count("http://read.example.com/"), 1u);
 }