Remove CRWSessionController usage from BrowserViewController.

ios/web/public/test/fakes/test_navigation_manager.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.
 
 #import "ios/web/public/test/fakes/test_navigation_manager.h"
 
 namespace web {
 
 TestNavigationManager::TestNavigationManager()
     : pending_item_(nullptr),
@@ skipping 109 matching lines @@
 }
 
 void TestNavigationManager::GoForward() {
   NOTREACHED();
 }
 
 void TestNavigationManager::GoToIndex(int index) {
   NOTREACHED();
 }
 
+NavigationItemList TestNavigationManager::GetBackwardItems() const {
+  NOTREACHED();
+  return NavigationItemList();
+}
+
+NavigationItemList TestNavigationManager::GetForwardItems() const {
+  NOTREACHED();
+  return NavigationItemList();
+}
+
 void TestNavigationManager::Reload(bool check_for_repost) {
   NOTREACHED();
 }
 
+void TestNavigationManager::InsertStateFromManager(
+    const web::NavigationManager* manager) {
+  NOTREACHED();
+}
+
 void TestNavigationManager::OverrideDesktopUserAgentForNextPendingItem() {
   NOTREACHED();
 }
 
 }  // namespace web