CSP: Upstream worker tests to WPT repository.

third_party/WebKit/LayoutTests/external/wpt/content-security-policy/support/testharness-helper.js

Index: third_party/WebKit/LayoutTests/external/wpt/content-security-policy/support/testharness-helper.js
diff --git a/third_party/WebKit/LayoutTests/external/wpt/content-security-policy/support/testharness-helper.js b/third_party/WebKit/LayoutTests/external/wpt/content-security-policy/support/testharness-helper.js
index 3c296800f8f0aed1adeaab34fce5f04d13f3470b..d475d05115a59d0d4630894227e7c0a1ae4304ce 100644
--- a/third_party/WebKit/LayoutTests/external/wpt/content-security-policy/support/testharness-helper.js
+++ b/third_party/WebKit/LayoutTests/external/wpt/content-security-policy/support/testharness-helper.js
@@ -19,6 +19,15 @@ function waitUntilCSPEventForURL(test, url) {
   });
 }
 
+function waitUntilCSPEventForEval(test, line) {
+  return new Promise((resolve, reject) => {
+    self.addEventListener("securitypolicyviolation", test.step_func(e => {
+      if (e.blockedURI == "eval" && e.lineNumber == line)
+        resolve(e);
+    }));
+  });
+}
+
 function waitUntilEvent(obj, name) {
   return new Promise((resolve, reject) => {
     obj.addEventListener(name, resolve);