Isolated world injected inline styles should bypass main world CSP.

LayoutTests/http/tests/security/isolatedWorld/resources/bypass-main-world-csp-for-inline-style.js

+if (window.testRunner) {
+    testRunner.dumpAsText();
+    testRunner.waitUntilDone();
+}
+
+tests = 4;
+window.addEventListener("message", function(message) {
+    tests -= 1;
+    test();
+}, false);
+
+function test() {
+    function injectInlineStyle(shouldSucceed, tests) {
+        var id = 'div' + tests;
+        var div = document.createElement('div');
+        div.id = id;
+        document.body.appendChild(div);
+        var style = document.createElement('style');
+        style.innerText = '#' + id + ' { color: red; }';
+        document.body.appendChild(style);
+        var success = window.getComputedStyle(document.getElementById(id)).color === "rgb(255, 0, 0)";
+        if (shouldSucceed) {
+            if (success)
+                console.log("PASS: Style assignment in test " + tests + " was blocked by CSP.");
+            else
+                console.log("FAIL: Style assignment in test " + tests + " was not blocked by CSP.");
+        } else {
+            if (success)
+                console.log("FAIL: Style assignment in test " + tests + " was blocked by CSP.");
+            else
+                console.log("PASS: Style assignment in test " + tests + " was not blocked by CSP.");
+        }
+        window.postMessage("next", "*");
+    }
+
+    switch (tests) {
+        case 4:
+            console.log("Injecting in main world: this should fail.");
+            injectInlineStyle(false, tests);
+            break;
+        case 3:
+            console.log("Injecting into isolated world without bypass: this should fail.");
+            testRunner.evaluateScriptInIsolatedWorld(1, String(eval("injectInlineStyle")) + "\ninjectInlineStyle(false," + tests + ");");
+            break;
+        case 2:
+            console.log("Starting to bypass main world's CSP: this should pass!");
+            testRunner.setIsolatedWorldContentSecurityPolicy(1, 'style-src \'unsafe-inline\' *');
+            testRunner.evaluateScriptInIsolatedWorld(1, String(eval("injectInlineStyle")) + "\ninjectInlineStyle(true," + tests + ");");
+            break;
+        case 1:
+            console.log("Injecting into main world again: this should fail.");
+            injectInlineStyle(false, tests);
+            break;
+        case 0:
+            testRunner.setIsolatedWorldContentSecurityPolicy(1, '');
+            testRunner.notifyDone();
+            break;
+    }
+}
+
+document.addEventListener('DOMContentLoaded', test);