117"></a><span class="lineno">  117</span>  <span class="comment">// Now just follow the logic we expounded on in the various doc headers.  Keeping explanations light here.</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span> </div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>  <span class="comment">// By contract we can&#39;t let the prefix frame change the start of the area given to capnp to be non-aligned.</span></div>
<