Import wpt@736f454583a00ad0d80b927b29a05df7fbda6a51

Using wpt-import in Chromium d56b672.

Build: https://build.chromium.org/p/chromium.infra.cron/builders/wpt-importer/builds/2015

Note to sheriffs: This CL imports external tests and adds
expectations for those tests; if this CL is large and causes
a few new failures, please fix the failures by adding new
lines to TestExpectations rather than reverting. See:
https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md

TBR=qyearsley@chromium.org

No-Export: true
Change-Id: I3c6cfa32abb6ba66041f5f3d1cff2fba80c5239c
Reviewed-on: https://chromium-review.googlesource.com/669445
Commit-Queue: Blink WPT Bot <blink-w3c-test-autoroller@chromium.org>
Reviewed-by: Blink WPT Bot <blink-w3c-test-autoroller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#502534}

third_party/WebKit/LayoutTests/external/WPT_BASE_MANIFEST.json

@@ -282291,7 +282291,7 @@
    "support"
   ],
   "presentation-api/receiving-ua/support/PresentationConnection_onmessage_receiving-ua.html": [
-   "7d7b0bb899d0ab8415c1705f5bee2ca7a9866561",
+   "da347fdf1c5c44a5974107678caab349add80c2f",
    "support"
   ],
   "presentation-api/receiving-ua/support/PresentationConnection_send_receiving-ua.html": [

third_party/WebKit/LayoutTests/external/wpt/presentation-api/receiving-ua/support/PresentationConnection_onmessage_receiving-ua.html

@@ -63,8 +63,8 @@
 
     assert_equals(connection.binaryType, 'arraybuffer', 'the default value of binaryType is "arraybuffer"');
     const eventWatcher = new EventWatcher(t, connection, 'message');
-    return eventWatcher.wait_for('message').then(evt => {
-      checkEvent(evt);
+    return eventWatcher.wait_for('message').then(event => {
+      checkEvent(event);
       assert_equals(event.data, message1, 'receive a string correctly');
       return watchEvent(connection, eventWatcher, 'message');
     }).then(event => {