Make dates default to the local timezone if none specified

src/dateparser-inl.h

Index: src/dateparser-inl.h
diff --git a/src/dateparser-inl.h b/src/dateparser-inl.h
index f7360f8c0231cc168a1c6cd64f3f1f355e9d97aa..f22e5de7974ae843fd9e45df464e7adf51883570 100644
--- a/src/dateparser-inl.h
+++ b/src/dateparser-inl.h
@@ -39,8 +39,8 @@ bool DateParser::Parse(Vector<Char> str,
   //         sss is in the range 000..999,
   //         hh is in the range 00..23,
   //         mm, ss, and sss default to 00 if missing, and
-  //         timezone defaults to Z if missing
-  //           (following Safari, ISO actually demands local time).
+  //         timezone defaults to local time if missing
+  //           (following the ES6 standard vs. ES5).

[ulan, 2015/07/24 13:56:25]

We can now drop the part in parenthesis. 

[hichris123, 2015/07/24 15:10:04]

Done.

   //  Extensions:
   //   We also allow sss to have more or less than three digits (but at
   //   least one).
@@ -299,8 +299,7 @@ DateParser::DateToken DateParser::ParseES5DateTime(
     }
     if (!scanner->Peek().IsEndOfInput()) return DateToken::Invalid();
   }
-  // Successfully parsed ES5 Date Time String. Default to UTC if no TZ given.
-  if (tz->IsEmpty()) tz->Set(0);
+  // Successfully parsed ES5 Date Time String.
   day->set_iso_date();
   return DateToken::EndOfInput();
 }