Make regress-crbug-514081 less flaky by having max serialization size

test/mjsunit/regress/regress-crbug-514081.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// Flags: --max-serializer-memory-usage=1000

[Michael Achenbach, 2017/02/15 09:35:24]

Maybe we need to blacklist this flag on our internal fuzzers to not cause too
many bail-outs?

Would this be useful to other test cases too where we allocate large array
buffers?

[binji, 2017/02/15 20:31:55]

I removed the flag instead, as suggested by Yang.
No, because this only tests the serialization buffer size.

 if (this.Worker) {
   var __v_7 = new Worker('onmessage = function() {};');
   var e;
+  var ab = new ArrayBuffer(2000);
   try {
-    var ab = new ArrayBuffer(2147483648);
-    try {
-      __v_7.postMessage(ab);
-    } catch (e) {
-      // postMessage failed, should be a DataCloneError message.
-      assertContains('cloned', e.message);
-    }
+    __v_7.postMessage(ab);
+    threw = false;
   } catch (e) {
-    // Creating the ArrayBuffer failed.
-    assertInstanceof(e, RangeError);
+    // postMessage failed, should be a DataCloneError message.
+    assertContains('cloned', e.message);
+    threw = true;
   }
+  assertTrue(threw, 'Should throw when trying to serialize large message.');
 }