base::Time should correctly handle -epoch time values from Javascript

base/time/time.cc

Index: base/time/time.cc
diff --git a/base/time/time.cc b/base/time/time.cc
index df3942cc858c5ecc7277a3a5db4e02cc0b946ccb..397ba15d227a710df19614f62e972b43cf0c9600 100644
--- a/base/time/time.cc
+++ b/base/time/time.cc
@@ -191,10 +191,6 @@ Time Time::FromJsTime(double ms_since_epoch) {
 }
 
 double Time::ToJsTime() const {
-  if (is_null()) {
-    // Preserve 0 so the invalid result doesn't depend on the platform.
-    return 0;
-  }
   if (is_max()) {
     // Preserve max without offset to prevent overflow.
     return std::numeric_limits<double>::infinity();