Configure the automatic timezone detection method

Unless the SystemTimezone policy turns off automatic time zone detection, then setting the policy outlines the automatic time zone detection method, which users can't change.

Setting the policy to:
* TimezoneAutomaticDetectionDisabled keeps automatic time zone detection off.
* TimezoneAutomaticDetectionIPOnly keeps automatic time zone detection on, using the IP-only method.
* TimezoneAutomaticDetectionSendWiFiAccessPoints keeps automatic time zone detection on, continually sending the list of visible Wi-Fi access-points to the Geolocation API server for finer-grained time zone detection.
* TimezoneAutomaticDetectionSendAllLocationInfo keeps automatic time zone detection on, continually sending location information (such as Wi-Fi access points, reachable cell towers, GPS) to a server for the most fine-grained time zone detection.

If not set, set to Let users decide, or set to None, then users control automatic time zone detection using normal controls in chrome://settings.

Configure the automatic timezone detection method

0. Let users decide
   

   Registry Hive	HKEY_LOCAL_MACHINE
   Registry Path	Software\Policies\Google\ChromeOS
   Value Name	SystemTimezoneAutomaticDetection
   Value Type	REG_DWORD
   Value	0

1. Never auto-detect timezone
   

   Registry Hive	HKEY_LOCAL_MACHINE
   Registry Path	Software\Policies\Google\ChromeOS
   Value Name	SystemTimezoneAutomaticDetection
   Value Type	REG_DWORD
   Value	1

2. Always use coarse timezone detection
   

   Registry Hive	HKEY_LOCAL_MACHINE
   Registry Path	Software\Policies\Google\ChromeOS
   Value Name	SystemTimezoneAutomaticDetection
   Value Type	REG_DWORD
   Value	2

3. Always send WiFi access-points to server while resolving timezone
   

   Registry Hive	HKEY_LOCAL_MACHINE
   Registry Path	Software\Policies\Google\ChromeOS
   Value Name	SystemTimezoneAutomaticDetection
   Value Type	REG_DWORD
   Value	3

4. Always send any available location signals to the server while resolving timezone
   

   Registry Hive	HKEY_LOCAL_MACHINE
   Registry Path	Software\Policies\Google\ChromeOS
   Value Name	SystemTimezoneAutomaticDetection
   Value Type	REG_DWORD
   Value	4