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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - REGRESSION(r192247): [GTK] ASSERTION FAILED: type == WebCore::ActionType || type == WebCore::CheckableActionType || type == WebCore::SeparatorType"
   href="https://bugs.webkit.org/show_bug.cgi?id=151513#c4">Comment # 4</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - REGRESSION(r192247): [GTK] ASSERTION FAILED: type == WebCore::ActionType || type == WebCore::CheckableActionType || type == WebCore::SeparatorType"
   href="https://bugs.webkit.org/show_bug.cgi?id=151513">bug 151513</a>
              from <span class="vcard"><a class="email" href="mailto:mcatanzaro&#64;igalia.com" title="Michael Catanzaro &lt;mcatanzaro&#64;igalia.com&gt;"> <span class="fn">Michael Catanzaro</span></a>
</span></b>
        <pre>Comment on <span class=""><a href="attachment.cgi?id=266243&amp;action=diff" name="attach_266243" title="Patch">attachment 266243</a> <a href="attachment.cgi?id=266243&amp;action=edit" title="Patch">[details]</a></span>
Patch

View in context: <a href="https://bugs.webkit.org/attachment.cgi?id=266243&amp;action=review">https://bugs.webkit.org/attachment.cgi?id=266243&amp;action=review</a>

<span class="quote">&gt; Source/WebKit2/ChangeLog:15
&gt; +        WebContextMenuItemGtk is SubmenuType if it has submenu itmes, but</span >

itmes -&gt; items

<span class="quote">&gt; Source/WebKit2/Shared/gtk/WebContextMenuItemGtk.cpp:128
&gt; +    : WebContextMenuItemData(data.type() == SubmenuType ? ActionType : data.type(), data.action(), data.title(), data.enabled(), data.checked())</span >

I think you should add this check to the constructor above, as well...

<span class="quote">&gt; Source/WebKit2/UIProcess/API/gtk/WebKitContextMenuItem.cpp:212
&gt; +    item-&gt;priv-&gt;menuItem = std::make_unique&lt;WebContextMenuItemGtk&gt;(ActionType, ContextMenuItemBaseApplicationTag, String::fromUTF8(label));</span >

...so that you don't need to do this.</pre>
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