Revert of base::Time should correctly handle -epoch time values from Javascript (patchset #1 id:1 o…

base/time/time.cc

Index: base/time/time.cc
diff --git a/base/time/time.cc b/base/time/time.cc
index 93a6195c18a9276aea08ab9a6d53d39a272d24bc..f5cefd49e0a2591b2656d55efeee7b62193f3551 100644
--- a/base/time/time.cc
+++ b/base/time/time.cc
@@ -191,6 +191,10 @@ 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();