Auto merge of #25634 - pshaughn:cjkcookies, r=jdm

Accept UTF8 cookie header values

<!-- Please describe your changes on the following line: -->
HeaderValue::to_str only works on ASCII; cookies can be utf8 too, so we decode accordingly.

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #25608

- [ ] There are tests for these changes in http_loader; I don't know whether websocket cookies have tests.

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components/net/http_loader.rs

@@ -272,7 +272,7 @@ fn set_cookies_from_headers(
     cookie_jar: &RwLock<CookieStorage>,
 ) {
     for cookie in headers.get_all(header::SET_COOKIE) {
-        if let Ok(cookie_str) = cookie.to_str() {
+        if let Ok(cookie_str) = std::str::from_utf8(cookie.as_bytes()) {
             set_cookie_for_url(&cookie_jar, &url, &cookie_str);
         }
     }

components/net/websocket_loader.rs

@@ -92,7 +92,7 @@ impl<'a> Handler for Client<'a> {
         let mut jar = self.http_state.cookie_jar.write().unwrap();
         // TODO(eijebong): Replace thise once typed headers settled on a cookie impl
         for cookie in headers.get_all(header::SET_COOKIE) {
-            if let Ok(s) = cookie.to_str() {
+            if let Ok(s) = std::str::from_utf8(cookie.as_bytes()) {
                 if let Some(cookie) =
                     Cookie::from_cookie_string(s.into(), self.resource_url, CookieSource::HTTP)
                 {

tests/wpt/metadata/cookies/http-state/charset-tests.html.ini

@@ -1,13 +0,0 @@
-[charset-tests.html]
-  [charset0002 - charset0002]
-    expected: FAIL
-
-  [charset0003 - charset0003]
-    expected: FAIL
-
-  [charset0004 - charset0004]
-    expected: FAIL
-
-  [charset0001 - charset0001]
-    expected: FAIL
-