CSP 1.1: Implement the 'frame-ancestors' directive.

LayoutTests/http/tests/security/contentSecurityPolicy/resources/frame-ancestors-test.js

+var SAME_ORIGIN = true;
+var CROSS_ORIGIN = false;
+
+var EXPECT_BLOCK = true;
+var EXPECT_LOAD = false;
+
+var CROSSORIGIN_ORIGIN = "http://localhost:8080";
+
+window.jsTestIsAsync = true;
+window.wasPostTestScriptParsed = true;
+
+if (window.testRunner)
+    testRunner.dumpChildFramesAsText();
+
+window.addEventListener("message", function (e) {
+    debug("Message received: " + e.data);
+});
+
+function injectIFrame(policy, sameOrigin, expectBlock) {
+    var iframe = document.createElement("iframe");
+    iframe.addEventListener("load", iframeLoaded(expectBlock));
+    iframe.addEventListener("error", iframeLoaded(expectBlock));
+
+    var url = "/security/contentSecurityPolicy/resources/frame-ancestors.pl?policy=" + policy;
+    if (!sameOrigin)
+        url = CROSSORIGIN_ORIGIN + url;
+
+    iframe.src = url;
+    document.body.appendChild(iframe);
+}
+
+function iframeLoaded(expectBlock) {
+    return function(ev) {
+        try {
+            console.log("IFrame load event fired: the IFrame's location is '" + ev.target.contentWindow.location.href + "'.");
+            if (expectBlock)
+                testFailed("The IFrame should have been blocked. It wasn't.");
+            else
+                testPassed("The IFrame should not have been blocked. It wasn't.");
+        } catch (ex) {
+            debug("IFrame load event fired: the IFrame is cross-origin (or was blocked).");
+            if (expectBlock)
+                testPassed("The IFrame should have been blocked. It was.");
+            else
+                testFailed("The IFrame should not have been blocked. It was.");
+        }
+        finishJSTest();
+    };
+}
+
+function crossOriginFrameShouldBeBlocked(policy) {
+    window.onload = function () {
+        injectIFrame(policy, CROSS_ORIGIN, EXPECT_BLOCK);
+    };
+}
+
+function crossOriginFrameShouldBeAllowed(policy) {
+    window.onload = function () {
+        injectIFrame(policy, CROSS_ORIGIN, EXPECT_LOAD);
+    };
+}
+
+function sameOriginFrameShouldBeBlocked(policy) {
+    window.onload = function () {
+        injectIFrame(policy, SAME_ORIGIN, EXPECT_BLOCK);
+    };
+}
+
+function sameOriginFrameShouldBeAllowed(policy) {
+    window.onload = function () {
+        injectIFrame(policy, SAME_ORIGIN, EXPECT_LOAD);
+    };
+}