ChromeOS: Implement periodic timezone refresh on geolocation data.

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 4e4ee2da2fec4d4c5c07220f762741409839c31e..8e574da289744743527610c8110f61d416992aaf 100644
--- a/chrome/browser/browser_process_platform_part_chromeos.h
+++ b/chrome/browser/browser_process_platform_part_chromeos.h
@@ -18,6 +18,7 @@ namespace chromeos {
 class ChromeUserManager;
 class OomPriorityManager;
 class ProfileHelper;
+class TimeZoneResolver;
 }
 
 namespace chromeos {
@@ -86,6 +87,8 @@ class BrowserProcessPlatformPart : public BrowserProcessPlatformPartBase,
     return device_disabling_manager_.get();
   }
 
+  chromeos::TimeZoneResolver* GetTimezoneResolver();
+
   // Overridden from BrowserProcessPlatformPartBase:
   void StartTearDown() override;
 
@@ -112,6 +115,8 @@ class BrowserProcessPlatformPart : public BrowserProcessPlatformPartBase,
   scoped_ptr<chromeos::system::DeviceDisablingManager>
       device_disabling_manager_;
 
+  scoped_ptr<chromeos::TimeZoneResolver> timezone_resolver_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessPlatformPart);
 };