Always show launcher and status if the app list is opened.

BUG=120230
TEST=The launcher and status should always be visible when app list is open.

Review URL: https://chromiumcodereview.appspot.com/9802041

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@129960 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/ash/shell.h b/ash/shell.h
index 2c864ad..fbf81b6b 100644
--- a/ash/shell.h
+++ b/ash/shell.h
@@ -139,6 +139,9 @@
   // Toggles app list.
   void ToggleAppList();
 
+  // Returns app list target visibility.
+  bool GetAppListTargetVisibility() const;
+
   // Returns true if the screen is locked.
   bool IsScreenLocked() const;