Fix portrait's fixed title bar

 Bug: 6468013

Change-Id: Ia6ee9645df9ebb8aa98734efef45b57db94651f7
diff --git a/res/layout/custom_screen.xml b/res/layout/custom_screen.xml
index 7a22530..61c455c 100644
--- a/res/layout/custom_screen.xml
+++ b/res/layout/custom_screen.xml
@@ -22,7 +22,8 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
     />
-    <LinearLayout android:orientation="vertical"
+    <com.android.browser.view.CustomScreenLinearLayout
+        android:orientation="vertical"
         android:id="@+id/vertical_layout"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
@@ -32,10 +33,15 @@
             android:layout_height="wrap_content"
         />
 
+        <FrameLayout android:id="@+id/fixed_titlebar_container"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+        />
+
         <FrameLayout android:id="@+id/main_content"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
         />
-    </LinearLayout>
+    </com.android.browser.view.CustomScreenLinearLayout>
 </merge>