[WebDriver BiDi] enable and disable scripting via BiDi

* Emulate disabled script via WebDriver BiDi. Required for WebDriver BiDi command [`emulation.setScriptingEnabled`](w3c/webdriver-bidi#946).
* Allow `bypassDisabledScripting` to force-run scripts even if the scripting was disabled. Required for some automation scenarios like WebDriver BiDi command [`script.evaluate`](https://www.w3.org/TR/webdriver-bidi/#commands-scriptevaluate). 
* Moved check "if scripting is disabled" from ["get the current value of the event handler"](https://html.spec.whatwg.org/multipage/webappapis.html#getting-the-current-value-of-the-event-handler) to ["the event handler processing algorithm"](https://html.spec.whatwg.org/multipage/webappapis.html#the-event-handler-processing-algorithm), so the ["get the current value of the event handler"](https://html.spec.whatwg.org/multipage/webappapis.html#getting-the-current-value-of-the-event-handler) and ["event handler IDL attribute"](https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-idl-attributes) will always return the actual handler, but they will not be processed.
* Removed the step "Check if we can run script" from ["8.1.6.6.2 HostEnqueueFinalizationRegistryCleanupJob(finalizationRegistry)"](https://html.spec.whatwg.org/multipage/webappapis.html#hostenqueuefinalizationregistrycleanupjob) to prevent memory leak.
* Removed the step "Check if we can run script" from ["8.1.6.6.4 HostEnqueuePromiseJob(job, realm)"](https://html.spec.whatwg.org/multipage/webappapis.html#hostenqueuepromisejob) to allow for Promise processing.
* Added the step "if [scripting is disabled](#11441 (comment))" to [timer initialisation steps](https://html.spec.whatwg.org/#timer-initialisation-steps) to prevent from scripts running .

Observable effects:
1. `on...` IDL properties return functions instead of null even if the scripting is off.
2. `FinalizationRegistry` is triggered even when the JS is turned off.
3. `.then` works even if the scripting is off.
4. `setTimeout` and `setInterval` tasks stop working when the JS is turned off. 

Tests for effects: web-platform-tests/wpt#55479

Author: sadym-chromium

source

@@ -4701,6 +4701,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
      <li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-user-prompt-opened">WebDriver BiDi user prompt opened</dfn></li>
      <li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-file-dialog-opened">WebDriver BiDi file dialog opened</dfn></li>
      <li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-emulated-language">WebDriver BiDi emulated language</dfn></li>
+     <li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-scripting-is-enabled">WebDriver BiDi scripting is enabled</dfn></li>
     </ul>
    </dd>
 
@@ -116167,6 +116168,9 @@ document.querySelector("button").addEventListener("click", bound);
    <span data-x="concept-document-window">associated <code>Document</code></span>'s <span>active
    sandboxing flag set</span> does not have its <span>sandboxed scripts browsing context flag</span>
    set.</li>
+
+   <li id="WebDriverBiDiScriptingIsEnabled">The result of <span>WebDriver BiDi scripting is
+   enabled</span> with <var>settings</var> is true.</li>
   </ul>
   </div>
 
@@ -116180,17 +116184,27 @@ document.querySelector("button").addEventListener("click", bound);
   <hr>
 
   <div algorithm>
-  <p><dfn data-x="concept-n-script">Scripting is enabled</dfn> for a node <var>node</var> if
-  <var>node</var>'s <span>node document</span>'s <span data-x="concept-document-bc">browsing
-  context</span> is non-null, and <span data-x="concept-environment-script">scripting is
-  enabled</span> for <var>node</var>'s <span>relevant settings object</span>.</p>
+  <p><dfn data-x="concept-n-noscript">Scripting is disabled</dfn> for a <span>platform
+  object</span> <var>object</var> if any of the following are true:</p>
+
+  <ul>
+   <li><p><span data-x="concept-environment-noscript">Scripting is disabled</span> for
+   <var>object</var>'s <span>relevant settings object</span>.</p></li>
+
+   <li><p>The <var>object</var> implements <code>Node</code>, and <var>object</var>'s <span>node
+   document</span>'s <span data-x="concept-document-bc">browsing context</span> is null.</p></li>
+
+   <li><p>The <var>object</var> implements <code>Window</code> and <var>object</var>'s <span
+   data-x="concept-document-window">associated <code>Document</code></span>'s <span
+   data-x="concept-document-bc">browsing context</span> is null.</p></li>
+  </ul>
   </div>
 
-  <p><dfn data-x="concept-n-noscript">Scripting is disabled</dfn> for a node when scripting is not
-  <span data-x="concept-n-script">enabled</span>, i.e., when its <span>node document</span>'s <span
-  data-x="concept-document-bc">browsing context</span> is null or when <span
-  data-x="concept-environment-noscript">scripting is disabled</span> for its <span>relevant settings
-  object</span>.</p>
+  <div algorithm>
+  <p><dfn data-x="concept-n-script">Scripting is enabled</dfn> for a <span>platform object</span>
+  <var>object</var>, when <var>object</var>'s scripting is not <span
+  data-x="concept-n-noscript">disabled</span>.</p>
+  </div>
 
   <h5>Secure contexts</h5>
 
@@ -117404,12 +117418,36 @@ document.querySelector("button").addEventListener("click", bound);
 
   <h5 id="creating-scripts">Creating scripts</h5>
 
+ <p>This standard refers to the following concepts defined there:</p>
+
+  <ul class="brief">
+   <li><dfn data-x="webdriver-bidi-command-script-evaluate"
+   data-x-href="https://w3c.github.io/webdriver-bidi/#command-script-evaluate">WebDriver BiDi
+   command "script.evaluate"</dfn></li>
+  </ul>
+
   <div algorithm>
   <p>To <dfn data-x="creating a classic script">create a classic script</dfn>, given a
   <span>string</span> <var>source</var>, an <span>environment settings object</span>
   <var>settings</var>, a <span>URL</span> <var>baseURL</var>, a <span>script fetch options</span>
-  <var>options</var>, an optional boolean <var>mutedErrors</var> (default false), and an optional
-  <span>URL</span>-or-null <var>sourceURLForWindowScripts</var> (default null):</p>
+  <var>options</var>, an optional boolean <var>mutedErrors</var> (default false), an optional
+  <span>URL</span>-or-null <var>sourceURLForWindowScripts</var> (default null) and an optional
+  boolean <var>bypassDisabledScripting</var> (default false):</p>
+
+  <p class="note">The <var>bypassDisabledScripting</var> parameter is intended to be used for
+  running scripts even if <span data-x="concept-environment-noscript">scripting is disabled</span>.
+  This is required for some automation scenarios, e.g. for WebDriver BiDi command <a
+  href="https://w3c.github.io/webdriver-bidi/#commands-scriptevaluate">"script.evaluate"</a>.</p>
+
+  <p class="note">The <var>bypassDisabledScripting</var> parameter is intended to be used for
+  running scripts even if scripting is disabled. This is required for some automation scenarios,
+  e.g. for <span data-x="webdriver-bidi-command-script-evaluate">WebDriver BiDi command
+  "script.evaluate"</span>. When the scripting process (e.g., executing a script via a WebDriver
+  BiDi command) is invoked with <var>bypassDisabledScripting</var> set to true, the event loop is
+  allowed to run to resolve thenables (from promises) and weakmap finalizations created by that
+  script, even if <span data-x="concept-environment-noscript">scripting is disabled</span>. This is
+  necessary to ensure the proper functioning of testing scripts, which often rely on asynchronous
+  operations.</p>
 
   <ol>
    <li>
@@ -117423,7 +117461,8 @@ document.querySelector("button").addEventListener("click", bound);
    </li>
 
    <li><p>If <span data-x="concept-environment-noscript">scripting is disabled</span> for
-   <var>settings</var>, then set <var>source</var> to the empty string.</p></li>
+   <var>settings</var> and <var>bypassDisabledScripting</var> is false, then set <var>source</var>
+   to the empty string.</p></li>
 
    <li><p>Let <var>script</var> be a new <span>classic script</span> that this algorithm will
    subsequently initialize.</p></li>
@@ -119991,9 +120030,6 @@ dictionary <dfn dictionary>PromiseRejectionEventInit</dfn> : <span>EventInit</sp
      <var>finalizationRegistry</var>.[[CleanupCallback]].[[Callback]].[[Realm]]'s <span
      data-x="concept-realm-settings-object">environment settings object</span>.</p></li>
 
-     <li><p><span>Check if we can run script</span> with <var>entry</var>. If this returns "do not
-     run", then return.</p></li>
-
      <li>
       <p><span>Prepare to run script</span> with <var>entry</var>.</p>
 
@@ -120075,9 +120111,6 @@ dictionary <dfn dictionary>PromiseRejectionEventInit</dfn> : <span>EventInit</sp
     <p><span>Queue a microtask</span> to perform the following steps:</p>
 
     <ol>
-     <li><p>If <var>job settings</var> is not null, then <span>check if we can run script</span>
-     with <var>job settings</var>. If this returns "do not run" then return.</p></li>
-
      <li>
       <p>If <var>job settings</var> is not null, then <span>prepare to run script</span> with
       <var>job settings</var>.</p>
@@ -122441,6 +122474,9 @@ import "https://example.com/foo/../module2.mjs";</code></pre>
   <code>Event</code> object <var>event</var> is as follows:</p>
 
   <ol>
+   <li><p>If <span data-x="concept-n-noscript">scripting is disabled</span> for
+   <var>eventTarget</var>, then return.</p></li>
+
    <li><p>Let <var>callback</var> be the result of <span>getting the current value of the event
    handler</span> given <var>eventTarget</var> and <var>name</var>.</p></li>
 
@@ -122635,8 +122671,8 @@ typedef <span>OnBeforeUnloadEventHandlerNonNull</span>? <dfn typedef>OnBeforeUnl
      <var>element</var> be null, and <var>document</var> be <var>eventTarget</var>'s <span
      data-x="concept-document-window">associated <code>Document</code></span>.</p></li>
 
-     <li><p>If <span data-x="concept-n-noscript">scripting is disabled</span> for
-     <var>document</var>, then return null.</p></li>
+     <li><p>If <var>document</var>'s <span>active sandboxing flag set</span> has its
+     <span>sandboxed scripts browsing context flag</span> set, then return null.</p></li>
 
      <li><p>Let <var>body</var> be the uncompiled script body in <var>eventHandler</var>'s <span
      data-x="event handler value">value</span>.</p></li>
@@ -124798,14 +124834,19 @@ interface <dfn interface>XMLSerializer</dfn> {
       data-x="dom-setInterval">setInterval()</code> call.</p>
      </li>
 
+     <li><p>Let <var>settings object</var> be <var>global</var>'s <span>relevant settings
+     object</span>.</p></li>
+
+     <li><p>If <span data-x="concept-environment-noscript">scripting is disabled</span> for
+     <var>settings object</var>, then abort these steps.</p></li>
+
      <li><p><span>Record timing info for timer handler</span> given <var>handler</var>,
-     <var>global</var>'s <span>relevant settings object</span>, and <var>repeat</var>.</p></li>
+     <var>settings object</var>, and <var>repeat</var>.</p></li>
 
      <li><p>If <var>handler</var> is a <code data-x="idl-Function">Function</code>, then <span
      data-x="es-invoking-callback-functions">invoke</span> <var>handler</var> given
      <var>arguments</var> and "<code data-x="">report</code>", and with <i
-     data-x="dfn-callback-this-value">callback this value</i> set to <var>thisArg</var>.</p>
-     </li>
+     data-x="dfn-callback-this-value">callback this value</i> set to <var>thisArg</var>.</p></li>
 
      <li>
       <p>Otherwise:</p>
@@ -124841,9 +124882,6 @@ interface <dfn interface>XMLSerializer</dfn> {
        <var>global</var>, and abort these steps.</p></li>
        <!-- timer is an enum value. -->
 
-       <li><p>Let <var>settings object</var> be <var>global</var>'s <span>relevant settings
-       object</span>.</p></li>
-
        <li><p>Let <var>fetch options</var> be the <span>default script fetch
        options</span>.</p></li>