Using GridLayout in AppsCustomize widgets tab.

- Starting to implement new widgets design
- Hiding outlines in phone ui while dragging
- Making the tab bar show only when we have items as well

Change-Id: Ic027f9ba83fc0982f2f92a90412f050a8e248f9c
diff --git a/res/layout/apps_customize_pane.xml b/res/layout/apps_customize_pane.xml
index 1b8be80..8361d16 100644
--- a/res/layout/apps_customize_pane.xml
+++ b/res/layout/apps_customize_pane.xml
@@ -23,6 +23,7 @@
         <!-- The layout_width of the tab bar gets overriden to align the content
              with the text in the tabs in AppsCustomizeTabHost. -->
         <FrameLayout
+            android:id="@+id/tabs_container"
             android:layout_width="wrap_content"
             android:layout_height="@dimen/qsb_bar_height"
             android:layout_gravity="center_horizontal">