Update Error Event inside a worker to provide the exact exception value

third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/ServiceWorkerGlobalScope/resources/error-worker.js

Index: third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/ServiceWorkerGlobalScope/resources/error-worker.js
diff --git a/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/ServiceWorkerGlobalScope/resources/error-worker.js b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/ServiceWorkerGlobalScope/resources/error-worker.js
new file mode 100644
index 0000000000000000000000000000000000000000..596839b8218c9ea4e99afb3768dc3826042603b7
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/ServiceWorkerGlobalScope/resources/error-worker.js
@@ -0,0 +1,12 @@
+var source;
+
+self.addEventListener('message', function(e) {
+  source = e.source;
+  throw 'testError';
+});
+
+self.addEventListener('error', function(e) {
+  source.postMessage({
+    value: e.error, filename: e.filename, message: e.message, lineno: e.lineno,

[nhiroki, 2017/04/06 06:56:49]

value: -> error:?

[yiyix, 2017/04/06 07:27:50]

Done.

+    colno: e.colno});
+});