Bug 1150742 - Remove new_tablet from tabs_panel_back_button. r=mhaigh

--HG--
rename : mobile/android/base/resources/layout-large-v11/new_tablet_tabs_panel_back_button.xml => mobile/android/base/resources/layout-large-v11/tabs_panel_back_button.xml
extra : commitid : GGEjJ28CDKc
extra : rebase_source : 8087f9c3455d40e7b1fb819a706be12d9f961534

mobile/android/base/resources/layout/tabs_panel_default.xml

@@ -19,7 +19,7 @@
               android:background="@color/text_and_tabs_tray_grey">
 
             <ViewStub android:id="@+id/nav_back_stub"
-                      android:layout="@layout/new_tablet_tabs_panel_back_button"
+                      android:layout="@layout/tabs_panel_back_button"
                       android:layout_width="wrap_content"
                       android:layout_height="match_parent"/>
 

mobile/android/base/resources/values/layout.xml

@@ -12,5 +12,5 @@
          provide dummy values below. -->
     <item type="layout" name="new_tablet_tab_strip">@null</item>
     <item type="layout" name="new_tablet_tabs_item_cell">@null</item>
-    <item type="layout" name="new_tablet_tabs_panel_back_button">@null</item>
+    <item type="layout" name="tabs_panel_back_button">@null</item>
 </resources>