Bug 1523562 [wpt PR 14417] - Update RTCPeerConnection-helper.js, a=te…

…stonly

Automatic update from web-platform-tests
Update RTCPeerConnection-helper.js (#14417)

* Update RTCPeerConnection-helper.js according changes proposed in web-platform-tests/wpt#13499
* Modernize doSignalingHandshake
--

wpt-commits: b75b876e7d5843582f21e5b52c54d509dffb6da0
wpt-pr: 14417

UltraBlame original commit: 603e8e8097b742115dca2e195f59f65618b97ac0

testing/web-platform/tests/webrtc/RTCDataChannel-send.html

@@ -141,7 +141,7 @@
 blobToArrayBuffer
 /
 /
-assert_equals_array_buffer
+assert_equals_typed_array
 /
 *
 6
@@ -966,7 +966,7 @@
 '
 )
 ;
-assert_equals_array_buffer
+assert_equals_typed_array
 (
 messageBuffer
 helloBuffer
@@ -1120,7 +1120,7 @@
 '
 )
 ;
-assert_equals_array_buffer
+assert_equals_typed_array
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 messageBuffer
 helloBuffer
@@ -1269,7 +1269,7 @@
 '
 )
 ;
-assert_equals_array_buffer
+assert_equals_typed_array
 (
 messageBuffer
 helloBuffer
@@ -1446,7 +1446,7 @@
 '
 )
 ;
-assert_equals_array_buffer
+assert_equals_typed_array
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 messageBuffer
 helloBuffer
@@ -1644,7 +1644,7 @@
 '
 )
 ;
-assert_equals_array_buffer
+assert_equals_typed_array
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 messageBuffer
 helloBuffer
@@ -1728,7 +1728,7 @@
 3
 )
 {
-assert_equals_array_buffer
+assert_equals_typed_array
 (
 receivedMessages
 [
@@ -1748,7 +1748,7 @@
 unicodeString
 )
 ;
-assert_equals_array_buffer
+assert_equals_typed_array
 (
 receivedMessages
 [