修改Ext.ux.form.FileUploadField变形问题

在css里加入

/*add*/
.x-form-file-wrap-small {
    height: 22px ! important;
}
.x-form-file-wrap-small .x-form-file {
    height: 22px ! important;
}
.x-form-file-wrap-medium {
    height: 30px ! important;
}
.x-form-file-wrap-medium .x-form-file {
    height: 30px ! important;
}
.x-form-file-wrap-large {
    height: 38px ! important;
}
.x-form-file-wrap-large .x-form-file {
    height: 38px ! important;
}

在Ext.ux.form.FileUploadField的onRender加入

this.wrap.addClass('x-form-file-wrap-'+this.button.scale);