Put back the back button

Change-Id: I0aea487eb2123d3d7e689c2f8ef24e9025a34aee
diff --git a/packages/SystemUI/res/drawable-mdpi/ic_sysbar_back.png b/packages/SystemUI/res/drawable-mdpi/ic_sysbar_back.png
new file mode 100644
index 0000000..6baf5ea
--- /dev/null
+++ b/packages/SystemUI/res/drawable-mdpi/ic_sysbar_back.png
Binary files differ
diff --git a/packages/SystemUI/res/layout-xlarge/status_bar.xml b/packages/SystemUI/res/layout-xlarge/status_bar.xml
index dbe4167..590132f 100644
--- a/packages/SystemUI/res/layout-xlarge/status_bar.xml
+++ b/packages/SystemUI/res/layout-xlarge/status_bar.xml
@@ -133,7 +133,7 @@
                 android:layout_height="match_parent"
                 android:paddingLeft="15dip"
                 android:paddingRight="15dip"
-                android:src="@drawable/status_bar_back"
+                android:src="@drawable/ic_sysbar_back"
                 android:background="@drawable/ic_sysbar_icon_bg"
                 systemui:keyCode="4"
                 />