ChromeOS: Add SystemTimezoneAutomaticDetection policy.

chrome/browser/browser_process_platform_part_chromeos.h

Index: chrome/browser/browser_process_platform_part_chromeos.h
diff --git a/chrome/browser/browser_process_platform_part_chromeos.h b/chrome/browser/browser_process_platform_part_chromeos.h
index d5d3887ab23fe8b71efecbfc0ab3c0aed550a29f..e90c9e50322420a8fae1421f1a0d6bd0654addf6 100644
--- a/chrome/browser/browser_process_platform_part_chromeos.h
+++ b/chrome/browser/browser_process_platform_part_chromeos.h
@@ -27,6 +27,7 @@ class AutomaticRebootManager;
 class DeviceDisablingManager;
 class DeviceDisablingManagerDefaultDelegate;
 class SystemClock;
+class TimeZoneResolverManager;
 }
 }
 
@@ -94,6 +95,8 @@ class BrowserProcessPlatformPart : public BrowserProcessPlatformPartBase,
     return device_disabling_manager_.get();
   }
 
+  chromeos::system::TimeZoneResolverManager* GetTimezoneResolverManager();
+
   chromeos::TimeZoneResolver* GetTimezoneResolver();
 
   // Overridden from BrowserProcessPlatformPartBase:
@@ -122,6 +125,8 @@ class BrowserProcessPlatformPart : public BrowserProcessPlatformPartBase,
   scoped_ptr<chromeos::system::DeviceDisablingManager>
       device_disabling_manager_;
 
+  scoped_ptr<chromeos::system::TimeZoneResolverManager>
+      timezone_resolver_manager_;
   scoped_ptr<chromeos::TimeZoneResolver> timezone_resolver_;
 
   scoped_ptr<chromeos::system::SystemClock> system_clock_;