Bug 1177611 - Move non-private browsing indicator to static drawables. r=mhaigh

This is not strictly necessary, but is a step towards removing the
tab_indicator_selected*.png assets (bug 1192048).

--HG--
extra : commitid : 3dPylPDgKpW
extra : rebase_source : b99a3d44b4ab454bcb16c9e0a3429407a9785d66

mobile/android/base/resources/drawable/tabs_panel_indicator.xml

@@ -20,7 +20,7 @@
     <item android:state_focused="false"
           android:state_selected="true"
           android:state_pressed="false"
-          android:drawable="@drawable/tab_indicator_selected"/>
+          android:drawable="@drawable/tabs_panel_indicator_selected"/>
 
     <item android:state_focused="true"
           android:state_selected="false"

mobile/android/base/resources/drawable/tabs_panel_indicator_selected.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<inset xmlns:android="http://schemas.android.com/apk/res/android"
+       android:insetTop="@dimen/tabs_panel_indicator_selected_padding_top"
+       android:drawable="@color/fennec_ui_orange"
+       />