For #13127 - Make sure tabPreview is added after browserLayout.

app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt

@@ -167,9 +167,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
         customTabSessionId = arguments?.getString(EXTRA_SESSION_ID)
 
         val view = if (FeatureFlags.browserChromeGestures) {
-            inflater.inflate(R.layout.browser_gesture_wrapper, container, false).apply {
-                inflater.inflate(R.layout.fragment_browser, this as SwipeGestureLayout, true)
-            }
+            inflater.inflate(R.layout.browser_gesture_wrapper, container, false)
         } else {
             inflater.inflate(R.layout.fragment_browser, container, false)
         }

app/src/main/res/layout/browser_gesture_wrapper.xml

@@ -7,6 +7,8 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <include layout="@layout/fragment_browser" />
+
     <org.mozilla.fenix.browser.TabPreview
         android:id="@+id/tabPreview"
         android:layout_width="match_parent"