ServiceWorker: throw when close() or terminate() called

LayoutTests/http/tests/serviceworker/resources/fetch-worker.js

Index: LayoutTests/http/tests/serviceworker/resources/fetch-worker.js
diff --git a/LayoutTests/http/tests/serviceworker/resources/fetch-worker.js b/LayoutTests/http/tests/serviceworker/resources/fetch-worker.js
index 7f5d401c3f0a3e618eefac237f462b0fb9ee5b2c..71819006c870e1efd847169f76da13d0b000878a 100644
--- a/LayoutTests/http/tests/serviceworker/resources/fetch-worker.js
+++ b/LayoutTests/http/tests/serviceworker/resources/fetch-worker.js
@@ -19,7 +19,9 @@ function doNextFetchTest(port) {
         port.postMessage('quit');
         // Destroying the execution context while fetch is happening should not cause a crash.
         fetch('dummy.html').then(function() {}).catch(function() {});
-        self.close();
+        // FIXME: Since we can't ensure the context is torn down while

[horo, 2014/08/27 02:24:50]

Could you please add this method

function runInfiniteFetchLoop() {
    fetch('dummy.html')
      .then(function() { runInfiniteFetchLoop(); })
}

and call this before port.postMessage('quit');?

[jsbell, 2014/08/27 16:27:09]

Done. Let's see what the try bots think.

+        // this fetch is outstanding, consider making it re-fetch on
+        // success.
         return;
     }
     var target = testTargets.shift();