ChromeOS: Implement periodic timezone refresh on geolocation data.

chromeos/chromeos_switches.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 "chromeos/chromeos_switches.h"
 
 #include "base/command_line.h"
 
 // TODO(rsorokin): alphabetize all of these switches so they
 // match the order from the .h file
@@ skipping 286 matching lines @@
 // stored.
 const char kGoldenScreenshotsDir[] = "golden-screenshots-dir";
 
 // Screenshot testing: specifies the directoru where artifacts will be stored.
 const char kArtifactsDir[] = "artifacts-dir";
 
 // Bypass proxy for captive portal authorization.
 const char kEnableCaptivePortalBypassProxy[] =
     "enable-captive-portal-bypass-proxy";
 
+// Enable automatic timezone update.
+const char kEnableTimeZoneTrackingOption[] = "enable-timezone-tracking-option";
+
 bool WakeOnWifiEnabled() {
   return !base::CommandLine::ForCurrentProcess()->HasSwitch(kDisableWakeOnWifi);
 }
 
 base::MemoryPressureObserverChromeOS::MemoryPressureThresholds
 GetMemoryPressureThresholds() {
   if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
           kMemoryPressureThresholds)) {
     return base::MemoryPressureObserverChromeOS::THRESHOLD_DEFAULT;
   }
   const std::string option =
       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
           kMemoryPressureThresholds);
   if (option == "1") {
     return base::MemoryPressureObserverChromeOS::THRESHOLD_CONSERVATIVE;
   }
   if (option == "2") {
     return base::MemoryPressureObserverChromeOS::
         THRESHOLD_AGGRESSIVE_CACHE_DISCARD;
   }
   if (option == "3") {
     return base::MemoryPressureObserverChromeOS::
         THRESHOLD_AGGRESSIVE_TAB_DISCARD;
   }
   return base::MemoryPressureObserverChromeOS::THRESHOLD_AGGRESSIVE;
 }
 
 }  // namespace switches
 }  // namespace chromeos