Some fixes to min-max test

layout/html/tests/formctls/base/button_min_max_widths.html

@@ -12,5 +12,10 @@ Tests HTML buttons and min/max-width, quirks mode
 <div>
 <button style="max-width: 200px"><div style="width: 300px">200px button</div></button>
 </div>
+<div>
+<button style="max-width: 200px">
+  <img src="http://www.mozilla.org/images/mozilla-banner.gif" style="width: 101px">
+  <img src="http://www.mozilla.org/images/mozilla-banner.gif" style="width: 101px"></button>
+</div>
 </body>
 </html>

layout/html/tests/formctls/base/button_min_max_widths_strict.html

@@ -13,5 +13,10 @@ Tests HTML buttons and min/max-width, standards mode
 <div>
 <button style="max-width: 200px"><div style="width: 300px">200px button</div></button>
 </div>
+<div>
+<button style="max-width: 200px">
+  <img src="http://www.mozilla.org/images/mozilla-banner.gif" style="width: 101px">
+  <img src="http://www.mozilla.org/images/mozilla-banner.gif" style="width: 101px"></button>
+</div>
 </body>
 </html>