DevTools: Catch async errors in unit tests

third_party/WebKit/LayoutTests/http/tests/inspector-unit/inspector-unit-test.js

 var UnitTest = {};
 (function()
 {
     var oldLoadResourcePromise = Runtime.loadResourcePromise;
     Runtime.loadResourcePromise = function(url)
     {
         if (url.startsWith("/"))
             return oldLoadResourcePromise(url);
 
         if (!url.startsWith("http://"))
@@ skipping 38 matching lines @@
     }
 
     UnitTest.addResult = function(text)
     {
         if (window.testRunner)
             results.push(String(text));
         else
             console.log(text);
     }
 
+    function completeTestOnError(message, source, lineno, colno, error)
+    {
+        UnitTest.addResult("TEST ENDED IN ERROR: " + error.stack);
+        UnitTest.completeTest();
+    }
+    window.onerror = completeTestOnError;
+
     Runtime.startApplication("/inspector-unit/inspector-unit-test").then(runTest);
 
     function runTest()
     {
         var description = document.body.textContent.trim();
         if (description)
             UnitTest.addResult(description);
 
         WebInspector.settings = new WebInspector.Settings(new WebInspector.SettingsStorage(
             {},
             InspectorFrontendHost.setPreference,
             InspectorFrontendHost.removePreference,
             InspectorFrontendHost.clearPreferences));
 
         WebInspector.viewManager = new WebInspector.ViewManager();
         WebInspector.initializeUIUtils(document, WebInspector.settings.createSetting("uiTheme", "default"));
 
         WebInspector.zoomManager = new WebInspector.ZoomManager(window, InspectorFrontendHost);
         WebInspector.inspectorView = WebInspector.InspectorView.instance();
         WebInspector.ContextMenu.initialize();
         WebInspector.ContextMenu.installHandler(document);
         WebInspector.Tooltip.installHandler(document);
 
         var rootView = new WebInspector.RootView();
         WebInspector.inspectorView.show(rootView.element);
         WebInspector.inspectorView.showInitialPanel();
         rootView.attachToDocument(document);
 
-        try {
-            test();
-        } catch (e) {
-            UnitTest.addResult("TEST ENDED IN ERROR: " + e.stack);
-            UnitTest.completeTest();
-        }
+        test();
     }
 })();