Adjusting //cookie/http-state tests name0031 and name0032.

Chrome and Firefox aligned on treating `"foo;bar"=baz` as a nameless cookie
with a value of `"foo`, and `"foo\"bar;baz"=qux` as a nameless cookie with
a value of `"foo\"bar`. That is, they both stop parsing the name/value pair
when they hit a `;`. This seems aligned with step 1 of
https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-05#section-5.3,
which defines the `name-value-pair` as everything up to but not including
the first `;`.

Adjusting these tests accordingly, as discussed in
httpwg/http-extensions#1136.

Change-Id: I6930f8e18a8c573b21eaea5614e14c3b957ea0bb

Author: mikewest

cookies/http-state/resources/test-files/name0031-expected

@@ -0,0 +1 @@
+Cookie: "foo

cookies/http-state/resources/test-files/name0032-expected

@@ -0,0 +1 @@
+Cookie: "foo\"bar