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

chrome/browser/about_flags.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 "chrome/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 722 matching lines @@
      SINGLE_VALUE_TYPE(extensions::switches::kExtensionsOnChromeURLs)},
 #endif
     {"enable-fast-unload", IDS_FLAGS_FAST_UNLOAD_NAME,
      IDS_FLAGS_FAST_UNLOAD_DESCRIPTION, kOsAll,
      SINGLE_VALUE_TYPE(switches::kEnableFastUnload)},
 #if defined(ENABLE_EXTENSIONS)
     {"enable-app-window-controls", IDS_FLAGS_APP_WINDOW_CONTROLS_NAME,
      IDS_FLAGS_APP_WINDOW_CONTROLS_DESCRIPTION, kOsDesktop,
      SINGLE_VALUE_TYPE(extensions::switches::kEnableAppWindowControls)},
 #endif
+    {"enable-history-entry-requires-user-gesture",
+     IDS_FLAGS_HISTORY_REQUIRES_USER_GESTURE_NAME,
+     IDS_FLAGS_HISTORY_REQUIRES_USER_GESTURE_DESCRIPTION, kOsAll,
+     SINGLE_VALUE_TYPE(switches::kHistoryEntryRequiresUserGesture)},
     {"disable-hyperlink-auditing", IDS_FLAGS_HYPERLINK_AUDITING_NAME,
      IDS_FLAGS_HYPERLINK_AUDITING_DESCRIPTION, kOsAll,
      SINGLE_DISABLE_VALUE_TYPE(switches::kNoPings)},
 #if defined(OS_ANDROID)
     {"contextual-search", IDS_FLAGS_CONTEXTUAL_SEARCH,
      IDS_FLAGS_CONTEXTUAL_SEARCH_DESCRIPTION, kOsAndroid,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableContextualSearch,
                                switches::kDisableContextualSearch)},
      {"cs-now-on-tap-bar-integration",
       IDS_FLAGS_CONTEXTUAL_SEARCH_NOW_ON_TAP_BAR_INTEGRATION,
@@ skipping 1507 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags