Add W3C encrypted-media tests

third_party/WebKit/LayoutTests/imported/wpt/encrypted-media/scripts/playback-temporary-expired.js

+function runTest(config,qualifier) {
+
+    var testname = testnamePrefix(qualifier, config.keysystem)
+                                    + ', temporary, '
+                                    + /video\/([^;]*)/.exec(config.videoType)[1]
+                                    + ', expired license';
+
+    var configuration = {   initDataTypes: [config.initDataType],
+                            audioCapabilities: [{contentType: config.audioType}],
+                            videoCapabilities: [{contentType: config.videoType}],
+                            sessionTypes: ['temporary'] };
+
+    async_test(function(test) {
+
+        var _video = config.video,
+            _mediaKeys,
+            _mediaKeySession,
+            _mediaSource;
+
+        function onFailure(error) {
+            forceTestFailureFromPromise(test, error);
+        }
+
+        function onEncrypted(event) {
+            assert_equals(event.target, _video);
+            assert_true(event instanceof window.MediaEncryptedEvent);
+            assert_equals(event.type, 'encrypted');
+
+            // Only create the session for the first encrypted event
+            if (_mediaKeySession !== undefined) return;
+
+            var initDataType = config.initData ? config.initDataType : event.initDataType;
+            var initData = config.initData || event.initData;
+
+            _mediaKeySession = _mediaKeys.createSession('temporary');
+            waitForEventAndRunStep('message', _mediaKeySession, onMessage, test);
+            _mediaKeySession.generateRequest(initDataType, initData).catch(onFailure);
+        }
+
+        function onMessage(event) {
+            assert_equals(event.target, _mediaKeySession);
+            assert_true(event instanceof window.MediaKeyMessageEvent);
+            assert_equals(event.type, 'message');
+
+            assert_in_array(event.messageType, ['license-request', 'individualization-request']);
+
+            var expiration = Date.now().valueOf() + 1000;
+            config.messagehandler(event.messageType, event.message, { expiration: expiration }).then(function(response) {
+                return event.target.update(response);
+            }).then(test.step_func(function() {
+                // License server may only have second granularity, so check
+                // that session expiration time is close to the desired value.
+                assert_approx_equals(event.target.expiration, expiration, 2000, "expiration attribute should equal provided expiration time");
+
+                // Since the expiration time is in the future, wait 5 seconds
+                // so that the license has expired before calling play().
+                test.step_timeout(function() {
+                    assert_greater_than(Date.now().valueOf(), expiration, "Starting play before license expired");
+                    _video.play();
+                    // Wait 2 seconds to ensure that the video does not play.
+                    test.step_timeout(function() { test.done(); }, 2000);
+                }, 5000);
+            })).catch(onFailure);
+        }
+
+        function onPlaying(event) {
+            // Not using waitForEventAndRunStep() to avoid too many
+            // EVENT(onTimeUpdate) logs.
+            _video.addEventListener('timeupdate', test.step_func(onTimeupdate), true);
+        }
+
+        function onTimeupdate(event) {
+            _video.pause();
+            assert_unreached("Playback should not start with expired license");
+        }
+
+        navigator.requestMediaKeySystemAccess(config.keysystem, [configuration]).then(function(access) {
+            return access.createMediaKeys();
+        }).then(function(mediaKeys) {
+            _mediaKeys = mediaKeys;
+            return _video.setMediaKeys(_mediaKeys);
+        }).then(function(){
+            waitForEventAndRunStep('encrypted', _video, onEncrypted, test);
+            waitForEventAndRunStep('playing', _video, onPlaying, test);
+            return testmediasource(config);
+        }).then(function(source) {
+            _mediaSource = source;
+            _video.src = URL.createObjectURL(_mediaSource);
+            return source.done;
+        }).catch(onFailure);
+    }, testname);
+}