Revert of Reland "Add base::TimeDelta::Max()"

media/base/media_log.cc

Index: media/base/media_log.cc
diff --git a/media/base/media_log.cc b/media/base/media_log.cc
index 5e000f0f3cb175c090a64128e107aa04a7f9b2f5..6e21cff485a902c2f91ff0489e4df026ca5ebe6a 100644
--- a/media/base/media_log.cc
+++ b/media/base/media_log.cc
@@ -141,10 +141,7 @@
 scoped_ptr<MediaLogEvent> MediaLog::CreateTimeEvent(
     MediaLogEvent::Type type, const char* property, base::TimeDelta value) {
   scoped_ptr<MediaLogEvent> event(CreateEvent(type));
-  if (value.is_max())
-    event->params.SetString(property, "unknown");
-  else
-    event->params.SetDouble(property, value.InSecondsF());
+  event->params.SetDouble(property, value.InSecondsF());
   return event.Pass();
 }