Update base/timer.h code to pass through Location from call sites.

chrome/browser/upgrade_detector_impl.cc

Index: chrome/browser/upgrade_detector_impl.cc
diff --git a/chrome/browser/upgrade_detector_impl.cc b/chrome/browser/upgrade_detector_impl.cc
index d6fa033944367e3b32ab491990ca2de9a35a947b..8fd68704e9c664479455e9f77fc0aff9b6bbb208 100644
--- a/chrome/browser/upgrade_detector_impl.cc
+++ b/chrome/browser/upgrade_detector_impl.cc
@@ -161,7 +161,7 @@ UpgradeDetectorImpl::UpgradeDetectorImpl()
   {
     detect_upgrade_timer_.Start(
         base::TimeDelta::FromMilliseconds(GetCheckForUpgradeEveryMs()),
-        this, &UpgradeDetectorImpl::CheckForUpgrade);
+        this, &UpgradeDetectorImpl::CheckForUpgrade, FROM_HERE);
   }
 #endif
 }
@@ -197,7 +197,7 @@ void UpgradeDetectorImpl::UpgradeDetected() {
                                                kNotifyCycleTimeForTestingMs;
   upgrade_notification_timer_.Start(
       base::TimeDelta::FromMilliseconds(cycle_time),
-      this, &UpgradeDetectorImpl::NotifyOnUpgrade);
+      this, &UpgradeDetectorImpl::NotifyOnUpgrade, FROM_HERE);
 }
 
 void UpgradeDetectorImpl::NotifyOnUpgrade() {