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    <body><span class="vcard"><a class="email" href="mailto:darin&#64;apple.com" title="Darin Adler &lt;darin&#64;apple.com&gt;"> <span class="fn">Darin Adler</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Slider knobs should scale when rendering while zoomed"
   href="https://bugs.webkit.org/show_bug.cgi?id=149835">bug 149835</a>
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           <td style="text-align:right;">Attachment #262514 Flags</td>
           <td>review?
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           <td>review+
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Slider knobs should scale when rendering while zoomed"
   href="https://bugs.webkit.org/show_bug.cgi?id=149835#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Slider knobs should scale when rendering while zoomed"
   href="https://bugs.webkit.org/show_bug.cgi?id=149835">bug 149835</a>
              from <span class="vcard"><a class="email" href="mailto:darin&#64;apple.com" title="Darin Adler &lt;darin&#64;apple.com&gt;"> <span class="fn">Darin Adler</span></a>
</span></b>
        <pre>Comment on <span class=""><a href="attachment.cgi?id=262514&amp;action=diff" name="attach_262514" title="Patch">attachment 262514</a> <a href="attachment.cgi?id=262514&amp;action=edit" title="Patch">[details]</a></span>
Patch

View in context: <a href="https://bugs.webkit.org/attachment.cgi?id=262514&amp;action=review">https://bugs.webkit.org/attachment.cgi?id=262514&amp;action=review</a>

Is there a good way to make a regression test for this? I don’t like making this fix without a test.

<span class="quote">&gt; Source/WebCore/platform/mac/ThemeMac.mm:688
&gt; +        std::unique_ptr&lt;ImageBuffer&gt; imageBuffer = ImageBuffer::createCompatibleBuffer(rect.size() + 2 * FloatSize(buttonFocusRectOutlineWidth, buttonFocusRectOutlineWidth), deviceScaleFactor, ColorSpaceSRGB, context, false);</span >

I suggest we use auto here instead of explicitly listing the type.

<span class="quote">&gt; Source/WebCore/platform/mac/ThemeMac.mm:697
&gt; +        needsRepaint = drawCellOrFocusRingIntoRectWithView(cell, NSRect(rect), view, drawButtonCell, drawFocusRing);</span >

Why the syntax NSRect(rect) here? Won’t the code compile without the explicit conversation?</pre>
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