
Adds 15px padding to all sides of provider icon to have padding which seems equal to that of list-search-result-content. This aligns the provider icon vertically with the search result content. Padding is set to 15px as list-search-result-content has 12px padding and the outer box (list-search-result) has 3px. http://bugzilla.gnome.org/show_bug.cgi?id=695760