Longer delay before fading out scrollbar

Default delay is 750ms. This change sets it 75sec.

Bug: 3454586
Change-Id: Ib6e4ad194fca577f397da0050ccfeaef0c04227c
diff --git a/packages/SystemUI/res/layout-xlarge/status_bar_input_methods_panel.xml b/packages/SystemUI/res/layout-xlarge/status_bar_input_methods_panel.xml
index efbf359..f6ed804 100644
--- a/packages/SystemUI/res/layout-xlarge/status_bar_input_methods_panel.xml
+++ b/packages/SystemUI/res/layout-xlarge/status_bar_input_methods_panel.xml
@@ -85,7 +85,9 @@
                 android:layout_height="wrap_content"
                 android:overScrollMode="ifContentScrolls"
                 android:layout_marginTop="3dip"
-                android:layout_weight="1">
+                android:layout_weight="1"
+                android:scrollbarAlwaysDrawVerticalTrack="true"
+                android:scrollbarDefaultDelayBeforeFade="75000">
                 <LinearLayout
                     android:id="@+id/input_method_menu_list"
                     android:layout_width="wrap_content"