[fenix] For https://github.com/mozilla-mobile/fenix/issues/16477: Migrate updateAccessibilityCollectionItemInfo to extension.

app/src/main/java/org/mozilla/fenix/ext/View.kt

@@ -66,6 +66,35 @@ fun View.addChildToAccessibilityNodeInfo(child: View) {
     }
 }
 
+/**
+ * Updates the a11y collection item info for an item in a list.
+ */
+fun View.updateAccessibilityCollectionItemInfo(
+    rowIndex: Int,
+    columnIndex: Int,
+    isSelected: Boolean,
+    rowSpan: Int = 1,
+    columnSpan: Int = 1
+) {
+    this.accessibilityDelegate = object : View.AccessibilityDelegate() {
+        override fun onInitializeAccessibilityNodeInfo(
+            host: View?,
+            info: AccessibilityNodeInfo?
+        ) {
+            super.onInitializeAccessibilityNodeInfo(host, info)
+            info?.collectionItemInfo =
+                AccessibilityNodeInfo.CollectionItemInfo.obtain(
+                    rowIndex,
+                    rowSpan,
+                    columnIndex,
+                    columnSpan,
+                    false,
+                    isSelected
+                )
+        }
+    }
+}
+
 /**
  * Fills a [Rect] with data about a view's location in the screen.
  *

app/src/main/java/org/mozilla/fenix/tabtray/FenixTabsAdapter.kt

@@ -22,6 +22,7 @@ import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.settings
+import org.mozilla.fenix.ext.updateAccessibilityCollectionItemInfo
 
 class FenixTabsAdapter(
     private val context: Context,
@@ -88,8 +89,7 @@ class FenixTabsAdapter(
             columnIndex = itemIndex % columnsCount
         }
 
-        (holder as TabTrayViewHolder).updateAccessibilityCollectionItemInfo(
+        holder.itemView.updateAccessibilityCollectionItemInfo(
-            holder.itemView,
             rowIndex,
             columnIndex,
             selectedItems.contains(holder.tab)

app/src/main/java/org/mozilla/fenix/tabtray/TabTrayViewHolder.kt

@@ -5,7 +5,6 @@
 package org.mozilla.fenix.tabtray
 
 import android.view.View
-import android.view.accessibility.AccessibilityNodeInfo
 import android.widget.ImageButton
 import android.widget.ImageView
 import android.widget.TextView
@@ -219,31 +218,6 @@ class TabTrayViewHolder(
         imageLoader.loadIntoView(thumbnailView, ImageLoadRequest(id, thumbnailSize))
     }
 
-    internal fun updateAccessibilityCollectionItemInfo(
-        item: View,
-        rowIndex: Int,
-        columnIndex: Int,
-        isSelected: Boolean
-    ) {
-        item.accessibilityDelegate = object : View.AccessibilityDelegate() {
-            override fun onInitializeAccessibilityNodeInfo(
-                host: View?,
-                info: AccessibilityNodeInfo?
-            ) {
-                super.onInitializeAccessibilityNodeInfo(host, info)
-                info?.collectionItemInfo =
-                    AccessibilityNodeInfo.CollectionItemInfo.obtain(
-                        rowIndex,
-                        1,
-                        columnIndex,
-                        1,
-                        false,
-                        isSelected
-                    )
-            }
-        }
-    }
-
     companion object {
         private const val PLAY_PAUSE_BUTTON_EXTRA_DPS = 24
         private const val GRID_ITEM_CLOSE_BUTTON_EXTRA_DPS = 24