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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Audit WebCore uses of RunLoop::main for USE(WEB_THREAD) iOS WebKit1"
   href="https://bugs.webkit.org/show_bug.cgi?id=168008">168008</a>
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        </tr>

        <tr>
          <th>Summary</th>
          <td>Audit WebCore uses of RunLoop::main for USE(WEB_THREAD) iOS WebKit1
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>WebCore Misc.
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>joepeck&#64;webkit.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>andersca&#64;apple.com, ap&#64;webkit.org, ddkilzer&#64;webkit.org, joepeck&#64;webkit.org
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        </tr></table>
      <p>
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        <pre>Audit WebCore uses of RunLoop::main for USE(WEB_THREAD) iOS WebKit1

Seems like these would need to handle iOS WebKit's WebThread.

    bindings/js/SerializedScriptValue.cpp
    2912:    RunLoop::main().dispatch([this, conditionPtr = &amp;condition, valuePtr = &amp;value] {

    inspector/WebHeapAgent.cpp
    57:    , m_timer(RunLoop::main(), this, &amp;SendGarbageCollectionEventsTask::timerFired)

    Modules/applepay/ApplePaySession.cpp
    496:        RunLoop::main().dispatch([promise, canMakePayments]() mutable {

    Modules/websockets/WebSocket.cpp
    295:            RunLoop::main().dispatch([this, protectedThis = makeRef(*this)]() {

    platform/graphics/MediaPlaybackTargetPicker.cpp
    40:    , m_pendingActionTimer(RunLoop::main(), this, &amp;MediaPlaybackTargetPicker::pendingActionTimerFired)

    workers/WorkerMessagingProxy.cpp
    165:    RunLoop::main().dispatch([this, message = message.isolatedCopy()] {

This is code in WebCore that stays in WebCore, so probably needs a WebThreadLock for legacy WebKit.</pre>
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