For #225 - Address small nits, changes default color of ic_delete

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SwipeToDeleteCallback.kt

@@ -12,6 +12,7 @@ import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.RecyclerView
 import io.reactivex.Observer
 import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.getColorFromAttr
 import org.mozilla.fenix.home.sessioncontrol.viewholders.TabInCollectionViewHolder
 import org.mozilla.fenix.home.sessioncontrol.viewholders.TabViewHolder
 
@@ -47,6 +48,7 @@ class SwipeToDeleteCallback(
     ) {
         super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive)
         val icon = ContextCompat.getDrawable(recyclerView.context, R.drawable.ic_delete)
+        icon?.setTint(R.attr.destructive.getColorFromAttr(recyclerView.context))
 
         val backgroundDrawable = when {
             viewHolder is TabInCollectionViewHolder && viewHolder.isLastTab -> {

app/src/main/java/org/mozilla/fenix/settings/DeleteBrowsingDataFragment.kt

@@ -133,16 +133,16 @@ class DeleteBrowsingDataFragment : Fragment(), CoroutineScope {
     }
 
     private fun deleteSelected() {
-        val openTabs = view!!.open_tabs_item!!.isChecked
-        val browsingData = view!!.browsing_data_item!!.isChecked
-        val collections = view!!.collections_item!!.isChecked
+        val openTabsChecked = view!!.open_tabs_item!!.isChecked
+        val browsingDataChecked = view!!.browsing_data_item!!.isChecked
+        val collectionsChecked = view!!.collections_item!!.isChecked
 
         startDeletion()
         launch(Dispatchers.IO) {
             var jobs = mutableListOf<Deferred<Unit>>()
-            if (openTabs) jobs.add(deleteTabsAsync())
-            if (browsingData) jobs.add(deleteBrowsingDataAsync())
-            if (collections) jobs.add(deleteCollectionsAsync())
+            if (openTabsChecked) jobs.add(deleteTabsAsync())
+            if (browsingDataChecked) jobs.add(deleteBrowsingDataAsync())
+            if (collectionsChecked) jobs.add(deleteCollectionsAsync())
 
             jobs.awaitAll()