Bug 610820 - Make all add-on icons the same size [r=mfinkle]

--HG--
extra : rebase_source : 905edf8c2dc4b57897fa387484f14f2d9a123f2e

mobile/themes/core/browser.css

@@ -459,6 +459,8 @@ toolbarbutton.choice-remotetabs {
 
 .addon-image {
   list-style-image: url("chrome://mozapps/skin/xpinstall/xpinstallItemGeneric.png");
+  width: 32px;
+  height: 32px;
 }
 
 .addon-rating[rating] {