diff -up chromium-44.0.2403.89/content/browser/time_zone_monitor.cc.icu53 chromium-44.0.2403.89/content/browser/time_zone_monitor.cc
--- chromium-44.0.2403.89/content/browser/time_zone_monitor.cc.icu53	2015-07-15 22:30:02.000000000 +0200
+++ chromium-44.0.2403.89/content/browser/time_zone_monitor.cc	2015-07-23 21:34:14.959000000 +0200
@@ -22,24 +22,11 @@ TimeZoneMonitor::~TimeZoneMonitor() {
 
 void TimeZoneMonitor::NotifyRenderers() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-#if defined(OS_CHROMEOS)
   // On CrOS, ICU's default tz is already set to a new zone. No
   // need to redetect it with detectHostTimeZone().
+  
+  // Use CrOS code for icu53 which does not have detectHostTimeZone()
   scoped_ptr<icu::TimeZone> new_zone(icu::TimeZone::createDefault());
-#else
-  icu::TimeZone* new_zone = icu::TimeZone::detectHostTimeZone();
-#if defined(OS_LINUX)
-  // We get here multiple times on Linux per a single tz change, but
-  // want to update the ICU default zone and notify renderer only once.
-  scoped_ptr<icu::TimeZone> current_zone(icu::TimeZone::createDefault());
-  if (*current_zone == *new_zone) {
-    VLOG(1) << "timezone already updated";
-    delete new_zone;
-    return;
-  }
-#endif
-  icu::TimeZone::adoptDefault(new_zone);
-#endif
   icu::UnicodeString zone_id;
   std::string zone_id_str;
   new_zone->getID(zone_id).toUTF8String(zone_id_str);