Revert^2 "Moving taskbar lifecycle to TouchInteractionService"

430465a3d5ff0dcdd0c2e263d862049d93075a07
Bug: 187353581
Change-Id: I7b2280d16adfafd3e85ffc1d22e32d0c00d12b67
diff --git a/quickstep/res/layout/taskbar.xml b/quickstep/res/layout/taskbar.xml
index 240fe55..c436221 100644
--- a/quickstep/res/layout/taskbar.xml
+++ b/quickstep/res/layout/taskbar.xml
@@ -22,9 +22,29 @@
 
     <com.android.launcher3.taskbar.TaskbarView
         android:id="@+id/taskbar_view"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:gravity="center"/>
+        android:gravity="center"
+        android:forceHasOverlappingRendering="false"
+        android:layout_gravity="bottom" >
+
+        <LinearLayout
+            android:id="@+id/system_button_layout"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingLeft="@dimen/taskbar_nav_buttons_spacing"
+            android:paddingRight="@dimen/taskbar_nav_buttons_spacing"
+            android:forceHasOverlappingRendering="false"
+            android:gravity="center" />
+
+        <LinearLayout
+            android:id="@+id/hotseat_icons_layout"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:forceHasOverlappingRendering="false"
+            android:gravity="center" />
+
+    </com.android.launcher3.taskbar.TaskbarView>
 
     <com.android.launcher3.taskbar.ImeBarView
         android:id="@+id/ime_bar_view"