test(chips): fix firefox not supporting :has

PiperOrigin-RevId: 542313215

chips/lib/_shared.scss

@@ -157,6 +157,7 @@
   .icon {
     align-self: center;
     display: flex;
+    fill: currentColor;
     position: relative;
   }
 

chips/lib/_trailing-icon.scss

@@ -33,7 +33,7 @@
     width: calc(4 / 3 * var(--_icon-size)); // 24px default
   }
 
-  :has(.trailing.action) .primary.action {
+  .has-trailing .primary.action {
     padding-inline-end: 0;
   }
 

chips/lib/filter-chip.ts

@@ -56,6 +56,7 @@ export class FilterChip extends MultiActionChip {
       ...super.getContainerClasses(),
       elevated: this.elevated,
       selected: this.selected,
+      'has-trailing': this.removable,
     };
   }
 

chips/lib/input-chip.ts

@@ -59,6 +59,7 @@ export class InputChip extends MultiActionChip {
       // Link chips cannot be disabled
       disabled: !this.href && this.disabled,
       selected: this.selected,
+      'has-trailing': true,
     };
   }
 

testing/templates.ts

@@ -22,6 +22,7 @@ export enum State {
   FOCUS = 'Focus',
   HOVER = 'Hover',
   PRESSED = 'Pressed',
+  SELECTED = 'Selected',
 }
 
 /**