Add a flag to require a user gesture to add an entry to the back/forward list.

content/renderer/render_view_impl.cc

 // 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.
 
 #include "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <memory>
 
@@ skipping 959 matching lines @@
   WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled);
   settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled);
   settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled);
   settings->setDataSaverEnabled(prefs.data_saver_enabled);
   settings->setLocalStorageEnabled(prefs.local_storage_enabled);
   settings->setSyncXHRInDocumentsEnabled(prefs.sync_xhr_in_documents_enabled);
   WebRuntimeFeatures::enableDatabase(prefs.databases_enabled);
   settings->setOfflineWebApplicationCacheEnabled(
       prefs.application_cache_enabled);
   settings->setCaretBrowsingEnabled(prefs.caret_browsing_enabled);
+  settings->setHistoryEntryRequiresUserGesture(
+      prefs.history_entry_requires_user_gesture);
   settings->setHyperlinkAuditingEnabled(prefs.hyperlink_auditing_enabled);
   settings->setCookieEnabled(prefs.cookie_enabled);
   settings->setNavigateOnDragDrop(prefs.navigate_on_drag_drop);
 
   // By default, allow_universal_access_from_file_urls is set to false and thus
   // we mitigate attacks from local HTML files by not granting file:// URLs
   // universal access. Only test shell will enable this.
   settings->setAllowUniversalAccessFromFileURLs(
       prefs.allow_universal_access_from_file_urls);
   settings->setAllowFileAccessFromFileURLs(
@@ skipping 2023 matching lines @@
         return render_frame->focused_pepper_plugin();
     }
     frame = frame->traverseNext(false);
   }
 
   return nullptr;
 }
 #endif
 
 }  // namespace content