Move web-platform-tests to wpt (part 1 of 2)

third_party/WebKit/LayoutTests/imported/wpt/html/dom/new-harness.js

 // We override only the things we need to -- the rest we'll just inherit from
 // original-harness.js.  Polymorphism, kind of.
 ReflectionHarness.catchUnexpectedExceptions = false;
 
 ReflectionHarness.test = function(expected, actual, description) {
   test(function() {
     assert_equals(expected, actual);
   }, this.getTypeDescription() + ": " + description);
   // This is the test suite that will rate conformance, so we don't want to
   // bail out early if a test fails -- we want all tests to always run.
   return true;
 }
 
 ReflectionHarness.run = function(fun, description) {
   test(fun, this.getTypeDescription() + ": " + description);
 }
 
 ReflectionHarness.testException = function(exceptionName, fn, description) {
   test(function() {
     assert_throws(exceptionName, fn);
   }, this.getTypeDescription() + ": " + description);
 }