Delete dead code for CurrentlyOpenTabs

chrome/common/pref_names.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/common/pref_names.h"
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/common/features.h"
 #include "chrome/common/pref_font_webkit_names.h"
@@ skipping 1504 matching lines @@
 
 // Whether Extensions are enabled.
 const char kDisableExtensions[] = "extensions.disabled";
 
 // Whether the plugin finder that lets you install missing plugins is enabled.
 const char kDisablePluginFinder[] = "plugins.disable_plugin_finder";
 
 // Customized app page names that appear on the New Tab Page.
 const char kNtpAppPageNames[] = "ntp.app_page_names";
 
-#if BUILDFLAG(ANDROID_JAVA_UI)
-// Keeps track of currently open tabs collapsed state in the Other Devices menu.
-const char kNtpCollapsedCurrentlyOpenTabs[] = "ntp.collapsed_open_tabs";
-#endif
-
 // Keeps track of which sessions are collapsed in the Other Devices menu.
 const char kNtpCollapsedForeignSessions[] = "ntp.collapsed_foreign_sessions";
 
 #if BUILDFLAG(ANDROID_JAVA_UI)
 // Keeps track of recently closed tabs collapsed state in the Other Devices
 // menu.
 const char kNtpCollapsedRecentlyClosedTabs[] =
     "ntp.collapsed_recently_closed_tabs";
 
 // Keeps track of snapshot documents collapsed state in the Other Devices menu.
@@ skipping 809 matching lines @@
 const char kSearchGeolocationPreDisclosureMetricsRecorded[] =
     "search_geolocation_pre_disclosure_metrics_recorded";
 
 // Whether the metrics for the state of geolocation post-disclosure being shown
 // have been recorded.
 const char kSearchGeolocationPostDisclosureMetricsRecorded[] =
     "search_geolocation_post_disclosure_metrics_recorded";
 #endif
 
 }  // namespace prefs