Revert "Currently, base/timer.cc calls PostTask with FROM_HERE as the Location,

chrome/renderer/extensions/extension_dispatcher.cc

Index: chrome/renderer/extensions/extension_dispatcher.cc
diff --git a/chrome/renderer/extensions/extension_dispatcher.cc b/chrome/renderer/extensions/extension_dispatcher.cc
index d2f06ef54f64b51101db1a98f9ab0aafffc8b0aa..a21cabf5d43c3b961c333e75ea09a524708ab83e 100644
--- a/chrome/renderer/extensions/extension_dispatcher.cc
+++ b/chrome/renderer/extensions/extension_dispatcher.cc
@@ -79,7 +79,7 @@ void ExtensionDispatcher::WebKitInitialized() {
   // For extensions, we want to ensure we call the IdleHandler every so often,
   // even if the extension keeps up activity.
   if (is_extension_process_) {
-    forced_idle_timer_.Start(FROM_HERE,
+    forced_idle_timer_.Start(
         base::TimeDelta::FromSeconds(kMaxExtensionIdleHandlerDelayS),
         RenderThread::current(), &RenderThread::IdleHandler);
   }
@@ -118,7 +118,7 @@ void ExtensionDispatcher::IdleNotification() {
         RenderThread::current()->idle_notification_delay_in_s()),
         kMaxExtensionIdleHandlerDelayS);
     forced_idle_timer_.Stop();
-    forced_idle_timer_.Start(FROM_HERE,
+    forced_idle_timer_.Start(
         base::TimeDelta::FromSeconds(forced_delay_s),
         RenderThread::current(), &RenderThread::IdleHandler);
   }