Migrate WebUSB LayoutTests into external/wpt

third_party/WebKit/LayoutTests/resources/testharnessreport.js

 /*
  * THIS FILE INTENTIONALLY LEFT BLANK
  *
  * More specifically, this file is intended for vendors to implement
  * code needed to integrate testharness.js tests with their own test systems.
  *
  * Typically such integration will attach callbacks when each test is
  * has run, using add_result_callback(callback(test)), or when the whole test file has
  * completed, using add_completion_callback(callback(tests, harness_status)).
  *
@@ skipping 60 matching lines @@
         // Escape carriage returns as they break rietveld's difftools.
         text = text.replace(/\r/g, "\\r");
         // Replace machine-dependent path with "...".
         if (localPathRegExp)
             text = text.replace(localPathRegExp, "...");
         return text;
     }
 
     function isWPTManualTest() {
         var path = location.pathname;
-        if (location.hostname == 'web-platform.test' && path.endsWith('-manual.html'))
+        if (location.hostname == 'web-platform.test'
+            && /.*-manual(\.https)?\.html$/.test(path)) {
             return true;
-        return /\/external\/wpt\/.*-manual\.html$/.test(path);
+        }
+        return /\/external\/wpt\/.*-manual(\.https)?\.html$/.test(path);
     }
 
     // Returns a directory part relative to WPT root and a basename part of the
     // current test. e.g.
     // Current test: file:///.../LayoutTests/external/wpt/pointerevents/foobar.html
     // Output: "/pointerevents/foobar"
     function pathAndBaseNameInWPT() {
         var path = location.pathname;
         if (location.hostname == 'web-platform.test') {
             var matches = path.match(/^(\/.*)\.html$/);
@@ skipping 12 matching lines @@
             automationPath = '/wpt_automation';
 
         // Export importAutomationScript for use by the automation scripts.
         window.importAutomationScript = function(relativePath) {
             var script = document.createElement('script');
             script.src = automationPath + relativePath;
             document.head.appendChild(script);
         }
 
         var src;
-        if (pathAndBase.startsWith('/fullscreen/')) {
-            // Fullscreen tests all use the same automation script.
+        if (pathAndBase.startsWith('/fullscreen/')
+            || pathAndBase.startsWith('/webusb/')) {
+            // Fullscreen tests all use the same automation script and WebUSB
+            // tests borrow it.
             src = automationPath + '/fullscreen/auto-click.js';
         } else if (pathAndBase.startsWith('/pointerevents/')
                    || pathAndBase.startsWith('/uievents/')) {
             // Per-test automation scripts.
             src = automationPath + pathAndBase + '-automation.js';
         } else {
             return;
         }
         var script = document.createElement('script');
         script.src = src;
         document.head.appendChild(script);
     }
 
+    function importTestPolyfills() {
+        var pathAndBase = pathAndBaseNameInWPT();
+        if (!pathAndBase)
+            return;
+        var automationPath = location.pathname.replace(/\/external\/wpt\/.*$/, '/external/wpt_polyfill');
+        if (location.hostname == 'web-platform.test')
+            polyfillPath = '/wpt_polyfill';
+
+        var script = document.createElement('script');
+        if (pathAndBase.startsWith('/webusb/')) {
+            // WebUSB tests require a polyfill for navigator.usb.test. This
+            // script will be loaded asynchronously so we need to patch in
+            // a version of navigator.usb.test.initialize() that will wait for
+            // the script to load.
+            script.src = polyfillPath + '/webusb/webusb-test.js';
+            let initializePromise = null;
+            navigator.usb.test = {
+              initialize: function() {
+                if (!initializePromise) {
+                  initializePromise = new Promise(resolve => {
+                    script.onload = () => {
+                      resolve(navigator.usb.test.initialize());
+                    }
+                  });
+                }
+                return initializePromise;
+              }
+            };
+        } else {
+            return;
+        }
+        document.head.appendChild(script);
+    }
+
     var didDispatchLoadEvent = false;
     window.addEventListener('load', function() {
         didDispatchLoadEvent = true;
         if (isWPTManualTest()) {
             setTimeout(loadAutomationScript, 0);
         }
     }, { once: true });
 
     add_start_callback(function(properties) {
       if (properties.output_document)
@@ skipping 118 matching lines @@
             // This function might not be the last 'completion callback', and
             // another completion callback might generate more results.  So, we
             // don't dump the results immediately.
             setTimeout(done, 0);
         } else {
             // Parsing the test HTML isn't finished yet.
             window.addEventListener('load', done);
         }
     });
 
+    importTestPolyfills();
 })();