Update web-platform-tests to revision b'b728032f59a396243864b0f8584e7211e3632005'

tests/wpt/web-platform-tests/webcodecs/video-encoder.https.any.js

@@ -83,7 +83,9 @@ promise_test(async t => {
 
   assert_equals(output_chunks.length, 2);
   assert_equals(output_chunks[0].timestamp, frame1.timestamp);
+  assert_equals(output_chunks[0].duration, frame1.duration);
   assert_equals(output_chunks[1].timestamp, frame2.timestamp);
+  assert_equals(output_chunks[1].duration, frame2.duration);
 }, 'Test successful configure(), encode(), and flush()');
 
 promise_test(async t => {
@@ -113,22 +115,36 @@ promise_test(async t => {
     frames.push(frame);
   }
 
+  let lastDequeueSize = Infinity;
+  encoder.ondequeue = () => {
+    assert_greater_than(lastDequeueSize, 0, "Dequeue event after queue empty");
+    assert_greater_than(lastDequeueSize, encoder.encodeQueueSize,
+                        "Dequeue event without decreased queue size");
+    lastDequeueSize = encoder.encodeQueueSize;
+  };
+
   for (let frame of frames)
     encoder.encode(frame);
 
-  assert_greater_than(encoder.encodeQueueSize, 0);
+  assert_greater_than_equal(encoder.encodeQueueSize, 0);
   assert_less_than_equal(encoder.encodeQueueSize, frames_count);
 
   await encoder.flush();
   // We can guarantee that all encodes are processed after a flush.
   assert_equals(encoder.encodeQueueSize, 0);
+  // Last dequeue event should fire when the queue is empty.
+  assert_equals(lastDequeueSize, 0);
+
+  // Reset this to Infinity to track the decline of queue size for this next
+  // batch of encodes.
+  lastDequeueSize = Infinity;
 
   for (let frame of frames) {
     encoder.encode(frame);
     frame.close();
   }
 
-  assert_greater_than(encoder.encodeQueueSize, 0);
+  assert_greater_than_equal(encoder.encodeQueueSize, 0);
   encoder.reset();
   assert_equals(encoder.encodeQueueSize, 0);
 }, 'encodeQueueSize test');