Implement messageerror event

https://bugs.webkit.org/show_bug.cgi?id=171216
rdar://96467919

Reviewed by Darin Adler.

Implement messageerror event:
- whatwg/html#2530

Previously, WebKit would fire a `message` event with its `data` being null,
whenever data deserialization would fail. This wasn't as per specification and
did not match other browser engines. We're supposed to fire a `messageerror`
event instead.

This patch addresses the issue.

* LayoutTests/imported/w3c/web-platform-tests/html/webappapis/scripting/events/event-handler-attributes-body-window-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/html/webappapis/scripting/events/event-handler-attributes-windowless-body-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/wasm/serialization/module/broadcastchannel-success-and-failure-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/wasm/serialization/module/window-sharedworker-failure-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/webmessaging/messageerror-expected.txt:
* Source/WebCore/bindings/js/SerializedScriptValue.cpp:
(WebCore::SerializedScriptValue::deserialize):
* Source/WebCore/bindings/js/SerializedScriptValue.h:
* Source/WebCore/dom/BroadcastChannel.cpp:
(WebCore::BroadcastChannel::dispatchMessage):
* Source/WebCore/dom/MessageEvent.cpp:
(WebCore::MessageEvent::create):
* Source/WebCore/dom/MessageEvent.h:
* Source/WebCore/dom/MessagePort.cpp:
(WebCore::MessagePort::dispatchMessages):
* Source/WebCore/dom/MessagePort.idl:
* Source/WebCore/html/HTMLAttributeNames.in:
* Source/WebCore/page/DOMWindow.cpp:
(WebCore::DOMWindow::postMessage):
* Source/WebCore/page/WindowEventHandlers.idl:
* Source/WebCore/workers/DedicatedWorkerGlobalScope.idl:
* Source/WebCore/workers/Worker.idl:
* Source/WebCore/workers/WorkerMessagingProxy.cpp:
(WebCore::WorkerMessagingProxy::postMessageToWorkerObject):
(WebCore::WorkerMessagingProxy::postMessageToWorkerGlobalScope):
* Source/WebCore/workers/service/ServiceWorkerContainer.cpp:
(WebCore::ServiceWorkerContainer::startMessages):
(WebCore::ServiceWorkerContainer::postMessage):
* Source/WebCore/workers/service/ServiceWorkerContainer.h:
* Source/WebCore/workers/service/context/ServiceWorkerThread.cpp:
(WebCore::fireMessageEvent):

Canonical link: https://commits.webkit.org/256896@main

LayoutTests/imported/w3c/web-platform-tests/html/dom/idlharness.https-expected.txt

@@ -585,7 +585,7 @@ PASS HTMLBodyElement interface: attribute onbeforeunload
 PASS HTMLBodyElement interface: attribute onhashchange
 PASS HTMLBodyElement interface: attribute onlanguagechange
 PASS HTMLBodyElement interface: attribute onmessage
-FAIL HTMLBodyElement interface: attribute onmessageerror assert_true: The prototype object must have a property "onmessageerror" expected true got false
+PASS HTMLBodyElement interface: attribute onmessageerror
 PASS HTMLBodyElement interface: attribute onoffline
 PASS HTMLBodyElement interface: attribute ononline
 PASS HTMLBodyElement interface: attribute onpagehide
@@ -609,7 +609,7 @@ PASS HTMLBodyElement interface: document.createElement("body") must inherit prop
 PASS HTMLBodyElement interface: document.createElement("body") must inherit property "onhashchange" with the proper type
 PASS HTMLBodyElement interface: document.createElement("body") must inherit property "onlanguagechange" with the proper type
 PASS HTMLBodyElement interface: document.createElement("body") must inherit property "onmessage" with the proper type
-FAIL HTMLBodyElement interface: document.createElement("body") must inherit property "onmessageerror" with the proper type assert_inherits: property "onmessageerror" not found in prototype chain
+PASS HTMLBodyElement interface: document.createElement("body") must inherit property "onmessageerror" with the proper type
 PASS HTMLBodyElement interface: document.createElement("body") must inherit property "onoffline" with the proper type
 PASS HTMLBodyElement interface: document.createElement("body") must inherit property "ononline" with the proper type
 PASS HTMLBodyElement interface: document.createElement("body") must inherit property "onpagehide" with the proper type
@@ -4526,7 +4526,7 @@ PASS Window interface: attribute onbeforeunload
 PASS Window interface: attribute onhashchange
 PASS Window interface: attribute onlanguagechange
 PASS Window interface: attribute onmessage
-FAIL Window interface: attribute onmessageerror assert_own_property: The global object must have a property "onmessageerror" expected property "onmessageerror" missing
+PASS Window interface: attribute onmessageerror
 PASS Window interface: attribute onoffline
 PASS Window interface: attribute ononline
 PASS Window interface: attribute onpagehide
@@ -4681,7 +4681,7 @@ PASS Window interface: window must inherit property "onbeforeunload" with the pr
 PASS Window interface: window must inherit property "onhashchange" with the proper type
 PASS Window interface: window must inherit property "onlanguagechange" with the proper type
 PASS Window interface: window must inherit property "onmessage" with the proper type
-FAIL Window interface: window must inherit property "onmessageerror" with the proper type assert_own_property: expected property "onmessageerror" missing
+PASS Window interface: window must inherit property "onmessageerror" with the proper type
 PASS Window interface: window must inherit property "onoffline" with the proper type
 PASS Window interface: window must inherit property "ononline" with the proper type
 PASS Window interface: window must inherit property "onpagehide" with the proper type
@@ -5055,7 +5055,7 @@ PASS MessagePort interface: operation postMessage(any, optional StructuredSerial
 PASS MessagePort interface: operation start()
 PASS MessagePort interface: operation close()
 PASS MessagePort interface: attribute onmessage
-FAIL MessagePort interface: attribute onmessageerror assert_true: The prototype object must have a property "onmessageerror" expected true got false
+PASS MessagePort interface: attribute onmessageerror
 PASS BroadcastChannel interface: existence and properties of interface object
 PASS BroadcastChannel interface object length
 PASS BroadcastChannel interface object name
@@ -5080,7 +5080,7 @@ PASS Worker interface: operation terminate()
 PASS Worker interface: operation postMessage(any, sequence<object>)
 PASS Worker interface: operation postMessage(any, optional StructuredSerializeOptions)
 PASS Worker interface: attribute onmessage
-FAIL Worker interface: attribute onmessageerror assert_true: The prototype object must have a property "onmessageerror" expected true got false
+PASS Worker interface: attribute onmessageerror
 PASS Worker interface: attribute onerror
 PASS SharedWorker interface: existence and properties of interface object
 PASS SharedWorker interface object length
@@ -5205,7 +5205,7 @@ PASS HTMLFrameSetElement interface: attribute onbeforeunload
 PASS HTMLFrameSetElement interface: attribute onhashchange
 PASS HTMLFrameSetElement interface: attribute onlanguagechange
 PASS HTMLFrameSetElement interface: attribute onmessage
-FAIL HTMLFrameSetElement interface: attribute onmessageerror assert_true: The prototype object must have a property "onmessageerror" expected true got false
+PASS HTMLFrameSetElement interface: attribute onmessageerror
 PASS HTMLFrameSetElement interface: attribute onoffline
 PASS HTMLFrameSetElement interface: attribute ononline
 PASS HTMLFrameSetElement interface: attribute onpagehide
@@ -5225,7 +5225,7 @@ PASS HTMLFrameSetElement interface: document.createElement("frameset") must inhe
 PASS HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "onhashchange" with the proper type
 PASS HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "onlanguagechange" with the proper type
 PASS HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "onmessage" with the proper type
-FAIL HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "onmessageerror" with the proper type assert_inherits: property "onmessageerror" not found in prototype chain
+PASS HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "onmessageerror" with the proper type
 PASS HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "onoffline" with the proper type
 PASS HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "ononline" with the proper type
 PASS HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "onpagehide" with the proper type

LayoutTests/imported/w3c/web-platform-tests/html/dom/idlharness.worker-expected.txt

@@ -584,7 +584,7 @@ PASS MessagePort interface: operation postMessage(any, optional StructuredSerial
 PASS MessagePort interface: operation start()
 PASS MessagePort interface: operation close()
 PASS MessagePort interface: attribute onmessage
-FAIL MessagePort interface: attribute onmessageerror assert_true: The prototype object must have a property "onmessageerror" expected true got false
+PASS MessagePort interface: attribute onmessageerror
 PASS BroadcastChannel interface: existence and properties of interface object
 PASS BroadcastChannel interface object length
 PASS BroadcastChannel interface object name
@@ -643,7 +643,7 @@ PASS DedicatedWorkerGlobalScope interface: operation postMessage(any, sequence<o
 PASS DedicatedWorkerGlobalScope interface: operation postMessage(any, optional StructuredSerializeOptions)
 PASS DedicatedWorkerGlobalScope interface: operation close()
 PASS DedicatedWorkerGlobalScope interface: attribute onmessage
-FAIL DedicatedWorkerGlobalScope interface: attribute onmessageerror assert_own_property: The global object must have a property "onmessageerror" expected property "onmessageerror" missing
+PASS DedicatedWorkerGlobalScope interface: attribute onmessageerror
 FAIL DedicatedWorkerGlobalScope interface: operation requestAnimationFrame(FrameRequestCallback) assert_own_property: global object missing non-static operation expected property "requestAnimationFrame" missing
 FAIL DedicatedWorkerGlobalScope interface: operation cancelAnimationFrame(unsigned long) assert_own_property: global object missing non-static operation expected property "cancelAnimationFrame" missing
 PASS DedicatedWorkerGlobalScope interface: internal [[SetPrototypeOf]] method of global platform object - setting to a new value via Object.setPrototypeOf should throw a TypeError
@@ -661,7 +661,7 @@ PASS DedicatedWorkerGlobalScope interface: self must inherit property "postMessa
 PASS DedicatedWorkerGlobalScope interface: calling postMessage(any, optional StructuredSerializeOptions) on self with too few arguments must throw TypeError
 PASS DedicatedWorkerGlobalScope interface: self must inherit property "close()" with the proper type
 PASS DedicatedWorkerGlobalScope interface: self must inherit property "onmessage" with the proper type
-FAIL DedicatedWorkerGlobalScope interface: self must inherit property "onmessageerror" with the proper type assert_own_property: expected property "onmessageerror" missing
+PASS DedicatedWorkerGlobalScope interface: self must inherit property "onmessageerror" with the proper type
 FAIL DedicatedWorkerGlobalScope interface: self must inherit property "requestAnimationFrame(FrameRequestCallback)" with the proper type assert_own_property: expected property "requestAnimationFrame" missing
 FAIL DedicatedWorkerGlobalScope interface: calling requestAnimationFrame(FrameRequestCallback) on self with too few arguments must throw TypeError assert_own_property: expected property "requestAnimationFrame" missing
 FAIL DedicatedWorkerGlobalScope interface: self must inherit property "cancelAnimationFrame(unsigned long)" with the proper type assert_own_property: expected property "cancelAnimationFrame" missing
@@ -713,7 +713,7 @@ PASS Worker interface: operation terminate()
 PASS Worker interface: operation postMessage(any, sequence<object>)
 PASS Worker interface: operation postMessage(any, optional StructuredSerializeOptions)
 PASS Worker interface: attribute onmessage
-FAIL Worker interface: attribute onmessageerror assert_true: The prototype object must have a property "onmessageerror" expected true got false
+PASS Worker interface: attribute onmessageerror
 PASS Worker interface: attribute onerror
 PASS SharedWorker interface: existence and properties of interface object
 PASS WorkerNavigator interface: existence and properties of interface object

LayoutTests/imported/w3c/web-platform-tests/html/webappapis/scripting/events/event-handler-attributes-body-window-expected.txt

@@ -11,7 +11,7 @@ PASS shadowed beforeunload (document.body)
 PASS shadowed hashchange (document.body)
 PASS shadowed languagechange (document.body)
 PASS shadowed message (document.body)
-FAIL shadowed messageerror (document.body) assert_equals: alternative body should reflect expected (function) function "() => 0" but got (undefined) undefined
+PASS shadowed messageerror (document.body)
 PASS shadowed offline (document.body)
 PASS shadowed online (document.body)
 PASS shadowed pagehide (document.body)
@@ -98,7 +98,7 @@ PASS shadowed beforeunload removal (document.body)
 PASS shadowed hashchange removal (document.body)
 PASS shadowed languagechange removal (document.body)
 PASS shadowed message removal (document.body)
-FAIL shadowed messageerror removal (document.body) assert_equals: body should reflect changes to itself expected (object) null but got (undefined) undefined
+PASS shadowed messageerror removal (document.body)
 PASS shadowed offline removal (document.body)
 PASS shadowed online removal (document.body)
 PASS shadowed pagehide removal (document.body)
@@ -120,7 +120,7 @@ PASS shadowed beforeunload (document.createElement("body"))
 PASS shadowed hashchange (document.createElement("body"))
 PASS shadowed languagechange (document.createElement("body"))
 PASS shadowed message (document.createElement("body"))
-FAIL shadowed messageerror (document.createElement("body")) assert_equals: body should reflect expected (function) function "() => 0" but got (undefined) undefined
+PASS shadowed messageerror (document.createElement("body"))
 PASS shadowed offline (document.createElement("body"))
 PASS shadowed online (document.createElement("body"))
 PASS shadowed pagehide (document.createElement("body"))
@@ -207,7 +207,7 @@ PASS shadowed beforeunload removal (document.createElement("body"))
 PASS shadowed hashchange removal (document.createElement("body"))
 PASS shadowed languagechange removal (document.createElement("body"))
 PASS shadowed message removal (document.createElement("body"))
-FAIL shadowed messageerror removal (document.createElement("body")) assert_equals: alternative body should reflect changes to itself expected (object) null but got (undefined) undefined
+PASS shadowed messageerror removal (document.createElement("body"))
 PASS shadowed offline removal (document.createElement("body"))
 PASS shadowed online removal (document.createElement("body"))
 PASS shadowed pagehide removal (document.createElement("body"))
@@ -229,7 +229,7 @@ PASS shadowed beforeunload (window)
 PASS shadowed hashchange (window)
 PASS shadowed languagechange (window)
 PASS shadowed message (window)
-FAIL shadowed messageerror (window) assert_equals: body should reflect expected (function) function "() => 0" but got (undefined) undefined
+PASS shadowed messageerror (window)
 PASS shadowed offline (window)
 PASS shadowed online (window)
 PASS shadowed pagehide (window)
@@ -316,7 +316,7 @@ PASS shadowed beforeunload removal (window)
 PASS shadowed hashchange removal (window)
 PASS shadowed languagechange removal (window)
 PASS shadowed message removal (window)
-FAIL shadowed messageerror removal (window) assert_equals: window should reflect changes to itself expected (object) null but got (undefined) undefined
+PASS shadowed messageerror removal (window)
 PASS shadowed offline removal (window)
 PASS shadowed online removal (window)
 PASS shadowed pagehide removal (window)

LayoutTests/imported/w3c/web-platform-tests/html/webappapis/scripting/events/event-handler-attributes-windowless-body-expected.txt

@@ -23,8 +23,8 @@ PASS Return null when getting the languagechange event handler of a windowless b
 PASS Ignore setting of languagechange window event handlers on windowless body
 PASS Return null when getting the message event handler of a windowless body
 PASS Ignore setting of message window event handlers on windowless body
-FAIL Return null when getting the messageerror event handler of a windowless body assert_equals: expected (object) null but got (undefined) undefined
-FAIL Ignore setting of messageerror window event handlers on windowless body assert_equals: expected (object) null but got (function) function "function () { return "Handler attached to windowless element"; }"
+PASS Return null when getting the messageerror event handler of a windowless body
+PASS Ignore setting of messageerror window event handlers on windowless body
 PASS Return null when getting the offline event handler of a windowless body
 PASS Ignore setting of offline window event handlers on windowless body
 PASS Return null when getting the online event handler of a windowless body
@@ -132,8 +132,8 @@ PASS Return null when getting the languagechange event handler of a windowless f
 PASS Ignore setting of languagechange window event handlers on windowless frameset
 PASS Return null when getting the message event handler of a windowless frameset
 PASS Ignore setting of message window event handlers on windowless frameset
-FAIL Return null when getting the messageerror event handler of a windowless frameset assert_equals: expected (object) null but got (undefined) undefined
-FAIL Ignore setting of messageerror window event handlers on windowless frameset assert_equals: expected (object) null but got (function) function "function () { return "Handler attached to windowless element"; }"
+PASS Return null when getting the messageerror event handler of a windowless frameset
+PASS Ignore setting of messageerror window event handlers on windowless frameset
 PASS Return null when getting the offline event handler of a windowless frameset
 PASS Ignore setting of offline window event handlers on windowless frameset
 PASS Return null when getting the online event handler of a windowless frameset

LayoutTests/imported/w3c/web-platform-tests/wasm/serialization/module/broadcastchannel-success-and-failure-expected.txt

@@ -1,5 +1,3 @@
 
-Harness Error (TIMEOUT), message = null
-
-TIMEOUT WebAssembly.Module cannot cross agent clusters, BroadcastChannel edition Test timed out
+PASS WebAssembly.Module cannot cross agent clusters, BroadcastChannel edition
 

LayoutTests/imported/w3c/web-platform-tests/wasm/serialization/module/window-sharedworker-failure-expected.txt

@@ -1,3 +1,3 @@
 
-FAIL WebAssembly.Modules cannot cross agent clusters, shared worker edition assert_unreached: Reached unreachable code
+PASS WebAssembly.Modules cannot cross agent clusters, shared worker edition
 

LayoutTests/imported/w3c/web-platform-tests/webmessaging/messageerror-expected.txt

@@ -1,5 +1,5 @@
 
-FAIL The default value of onmessageerror is null assert_equals: body expected (object) null but got (undefined) undefined
-FAIL The onmessageerror content attribute must be compiled into the onmessageerror property assert_equals: The onmessageerror property must be a function expected "function" but got "undefined"
-FAIL The onmessageerror content attribute must execute when an event is dispatched on the window assert_true: Dispatching the event must run the code expected true got false
+PASS The default value of onmessageerror is null
+PASS The onmessageerror content attribute must be compiled into the onmessageerror property
+PASS The onmessageerror content attribute must execute when an event is dispatched on the window