Experimental 'purging and suspending' backgrounded tabs behind the flag

chrome/common/chrome_switches.h

 // 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.
 
 // Defines the shared command-line switches used by code in the Chrome
 // directory that don't have anywhere more specific to go.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
@@ skipping 216 matching lines @@
 extern const char kPrivetIPv6Only[];
 extern const char kProductVersion[];
 extern const char kProfileDirectory[];
 extern const char kProfilingAtStart[];
 extern const char kProfilingFile[];
 extern const char kProfilingFlush[];
 extern const char kProxyAutoDetect[];
 extern const char kProxyBypassList[];
 extern const char kProxyPacUrl[];
 extern const char kProxyServer[];
+extern const char kPurgeAndSuspendTime[];
 extern const char kQuicConnectionOptions[];
 extern const char kQuicHostWhitelist[];
 extern const char kQuicMaxPacketLength[];
 extern const char kQuicVersion[];
 extern const char kRemoteDebuggingTargets[];
 extern const char kRestoreLastSession[];
 extern const char kSavePageAsMHTML[];
 extern const char kSbDisableAutoUpdate[];
 extern const char kSbDisableDownloadProtection[];
 extern const char kSbDisableExtensionBlacklist[];
@@ skipping 158 matching lines @@
 #if defined(ENABLE_TASK_MANAGER)
 bool NewTaskManagerEnabled();
 #endif  // defined(ENABLE_TASK_MANAGER)
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_