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    <body><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> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Leak in WebContextInjectedBundleClient::getInjectedBundleInitializationUserData"
   href="https://bugs.webkit.org/show_bug.cgi?id=148769">bug 148769</a>
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          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
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           <td style="text-align:right;">CC</td>
           <td>
               &nbsp;
           </td>
           <td>mcatanzaro&#64;igalia.com
           </td>
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         <tr>
           <td style="text-align:right;">Summary</td>
           <td>UI process leaks InjectedBundleInitializationUserData
           </td>
           <td>Leak in WebContextInjectedBundleClient::getInjectedBundleInitializationUserData
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Leak in WebContextInjectedBundleClient::getInjectedBundleInitializationUserData"
   href="https://bugs.webkit.org/show_bug.cgi?id=148769#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Leak in WebContextInjectedBundleClient::getInjectedBundleInitializationUserData"
   href="https://bugs.webkit.org/show_bug.cgi?id=148769">bug 148769</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>(In reply to <a href="show_bug.cgi?id=148769#c1">comment #1</a>)
<span class="quote">&gt; Adopting the pointer into the PassRefPtr in
&gt; WebContextInjectedBundleClient::getInjectedBundleInitializationUserData()
&gt; would probably fix the leak.</span >

Yes, this fixes it:

-    return toImpl(m_client.getInjectedBundleInitializationUserData(toAPI(processPool), m_client.base.clientInfo));
+    return adoptRef(toImpl(m_client.getInjectedBundleInitializationUserData(toAPI(processPool), m_client.base.clientInfo));

A clue was that the result of toImpl was adopted one function up. 

(Feel free to submit the patch if you want, since you found it; otherwise I will.)</pre>
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