Try to pop up to home if it exists on stack from browserfragment

app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarIntegration.kt

@@ -57,7 +57,7 @@ class ToolbarIntegration(
                     {
                         toolbar.hideKeyboard()
                         // We need to dynamically add the options here because if you do it in XML it overwrites
-                        val options = NavOptions.Builder().setPopUpTo(R.id.browserFragment, false)
+                        val options = NavOptions.Builder().setPopUpTo(R.id.homeFragment, true)
                             .setEnterAnim(R.anim.fade_in).setExitAnim(R.anim.fade_out).build()
                         val extras =
                             FragmentNavigator.Extras.Builder()
@@ -66,8 +66,10 @@ class ToolbarIntegration(
                                     "$TAB_ITEM_TRANSITION_NAME${sessionManager.selectedSession?.id}"
                                 )
                                 .build()
-                        Navigation.findNavController(toolbar)
-                            .navigate(R.id.action_browserFragment_to_homeFragment, null, options, extras)
+                        val navController = Navigation.findNavController(toolbar)
+                        if (!navController.popBackStack(R.id.homeFragment, false)) {
+                            navController.navigate(R.id.action_browserFragment_to_homeFragment, null, options, extras)
+                        }
                     },
                     isPrivate
                 )

app/src/main/java/org/mozilla/fenix/home/HomeFragment.kt

@@ -48,8 +48,8 @@ import org.mozilla.fenix.R
 import org.mozilla.fenix.collections.CreateCollectionViewModel
 import org.mozilla.fenix.collections.SaveCollectionStep
 import org.mozilla.fenix.components.metrics.Event
-import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.allowUndo
+import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.urlToTrimmedHost
 import org.mozilla.fenix.home.sessioncontrol.CollectionAction
@@ -220,14 +220,6 @@ class HomeFragment : Fragment(), CoroutineScope, AccountObserver {
 
     override fun onResume() {
         super.onResume()
-        val homeViewModel = activity?.run {
-            ViewModelProviders.of(this).get(HomeScreenViewModel::class.java)
-        }
-        homeViewModel?.layoutManagerState?.also { parcelable ->
-            sessionControlComponent.view.layoutManager?.onRestoreInstanceState(parcelable)
-        }
-        homeLayout?.progress =
-            if (homeViewModel?.motionLayoutProgress ?: 0F > MOTION_LAYOUT_PROGRESS_ROUND_POINT) 1.0f else 0f
         (activity as AppCompatActivity).supportActionBar?.hide()
 
         requireComponents.backgroundServices.accountManager.register(this, owner = this)