Fetch API: Stop lowercasing header names.

third_party/WebKit/LayoutTests/http/tests/fetch/resources/thorough-util.js

 var SCOPE = BASE_ORIGIN +
   '/fetch/resources/thorough-iframe.html?' + TEST_OPTIONS;
 var IFRAME_ORIGIN = BASE_ORIGIN;
 var BASE_URL = BASE_ORIGIN +
   '/serviceworker/resources/fetch-access-control.php?';
 var OTHER_BASE_URL = OTHER_ORIGIN +
   '/serviceworker/resources/fetch-access-control.php?';
 var BASE_URL_WITH_USERNAME = BASE_URL.replace('://', '://user@');
 var OTHER_BASE_URL_WITH_USERNAME = OTHER_BASE_URL.replace('://', '://user@');
 var BASE_URL_WITH_PASSWORD = BASE_URL.replace('://', '://user:pass@');
@@ skipping 145 matching lines @@
                 'success',
                 url + ' jsonpResult must be success');
   assert_equals(data.cookie,
                 cookie,
                 'Cookie must match. url: ' + url);
 };
 var checkJsonpError = checkJsonpResult.bind(this, 'error');
 var checkJsonpSuccess = checkJsonpResult.bind(this, 'success');
 var checkJsonpNoRedirect = checkJsonpResult.bind(this, 'noredirect');
 var hasCustomHeader =
-  checkJsonpHeader.bind(this, 'x-serviceworker-test', 'test');
+  checkJsonpHeader.bind(this, 'X-ServiceWorker-Test', 'test');
 var hasCustomHeader2 = function(url, data) {
-  checkJsonpHeader('x-serviceworker-s', 'test1', url, data);
-  checkJsonpHeader('x-serviceworker-test', 'test2,test3', url, data);
-  checkJsonpHeader('x-serviceworker-ua', 'test4', url, data);
-  checkJsonpHeader('x-serviceworker-u', 'test5', url, data);
-  checkJsonpHeader('x-serviceworker-v', 'test6', url, data);
+  checkJsonpHeader('X-ServiceWorker-s', 'test1', url, data);
+  checkJsonpHeader('X-ServiceWorker-Test', 'test2,test3', url, data);
+  checkJsonpHeader('X-ServiceWorker-ua', 'test4', url, data);
+  checkJsonpHeader('X-ServiceWorker-U', 'test5', url, data);
+  checkJsonpHeader('X-ServiceWorker-V', 'test6', url, data);
 };
 var noCustomHeader =
-  checkJsonpHeader.bind(this, 'x-serviceworker-test', undefined);
+  checkJsonpHeader.bind(this, 'X-ServiceWorker-Test', undefined);
 var methodIsGET = checkJsonpMethod.bind(this, 'GET');
 var methodIsPOST = checkJsonpMethod.bind(this, 'POST');
 var methodIsPUT = checkJsonpMethod.bind(this, 'PUT');
 var methodIsXXX = checkJsonpMethod.bind(this, 'XXX');
 var authCheckNone =
   checkJsonpAuth.bind(this, 'undefined', 'undefined', 'undefined');
 var authCheck1 = checkJsonpAuth.bind(this, 'username1', 'password1', 'cookie1');
 var authCheck2 = checkJsonpAuth.bind(this, 'username2', 'password2', 'cookie2');
 
 var cookieCheck1 = checkJsonpCookie.bind(this, 'cookie1');
@@ skipping 262 matching lines @@
 
 function executeTests(test_targets) {
   for (var i = 0; i < test_targets.length; ++i) {
     promise_test(
       function(counter, t) {
         return executeTest(test_targets[counter]);
       }.bind(this, i),
       "executeTest-" + i);
   }
 }