Move ReadingList model to components/reading_list/core

ios/chrome/browser/reading_list/reading_list_web_state_observer_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 "ios/chrome/browser/reading_list/reading_list_web_state_observer.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/time/default_clock.h"
-#include "components/reading_list/ios/reading_list_model_impl.h"
+#include "components/reading_list/core/reading_list_model_impl.h"
 #include "ios/chrome/browser/reading_list/offline_url_utils.h"
 #import "ios/web/public/navigation_item.h"
 #include "ios/web/public/reload_type.h"
 #import "ios/web/public/test/fakes/test_navigation_manager.h"
 #import "ios/web/public/test/fakes/test_web_state.h"
 #include "ios/web/public/test/web_test.h"
 #import "ios/web/public/web_state/web_state.h"
 #include "net/base/network_change_notifier.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 141 matching lines @@
   test_web_state_.SetLoading(false);
 
   EXPECT_TRUE(test_navigation_manager_->ReloadCalled());
   EXPECT_EQ(test_navigation_manager_->GetLastCommittedItem()->GetVirtualURL(),
             url);
   EXPECT_EQ(test_navigation_manager_->GetLastCommittedItem()->GetURL(),
             distilled_url);
 
   EXPECT_TRUE(entry->IsRead());
 }