Expose crypto.getRandomValues() to workers.

LayoutTests/crypto/resources/random-values-limits.js

Index: LayoutTests/crypto/resources/random-values-limits.js
diff --git a/LayoutTests/crypto/resources/random-values-limits.js b/LayoutTests/crypto/resources/random-values-limits.js
new file mode 100644
index 0000000000000000000000000000000000000000..f78f9bf2917f2af022bfb2f5de4e5923901ca76e
--- /dev/null
+++ b/LayoutTests/crypto/resources/random-values-limits.js
@@ -0,0 +1,23 @@
+if (self.importScripts) {
+    importScripts('../../fast/js/resources/js-test-pre.js');
+}
+
+description("Tests the limits of crypto.randomValues.");
+
+if (!self.ArrayBuffer)
+    debug("This test requres ArrayBuffers to run!");
+
+shouldBe("'crypto' in self", "true");
+shouldBe("'getRandomValues' in self.crypto", "true");
+
+try {
+    var almostTooLargeArray = new Uint8Array(65536);
+    var tooLargeArray = new Uint8Array(65537);
+
+    shouldNotThrow("crypto.getRandomValues(almostTooLargeArray)");
+    shouldThrow("crypto.getRandomValues(tooLargeArray)");
+} catch(ex) {
+    debug(ex);
+}
+
+finishJSTest();