wordflow">if</span> (other == <span class="keyword">this</span>) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    GOOGLE_DCHECK(GetArena() == other-&gt;GetArena());</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    InternalSwap(other);</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;  }</div>
<div class="line"><a name="l00129"></a><span class="lineno">  12