Add new attention state to launcher

ash/launcher/launcher_view.cc

Index: ash/launcher/launcher_view.cc
diff --git a/ash/launcher/launcher_view.cc b/ash/launcher/launcher_view.cc
index 90d9be93f1b3e0ff92c0a313b806d7e518623d0c..9ddf6985a020b70de1a2ee62545f660414fde9a3 100644
--- a/ash/launcher/launcher_view.cc
+++ b/ash/launcher/launcher_view.cc
@@ -169,14 +169,22 @@ void ReflectItemStatus(const ash::LauncherItem& item,
     case STATUS_CLOSED:
       button->ClearState(LauncherButton::STATE_ACTIVE);
       button->ClearState(LauncherButton::STATE_RUNNING);
+      button->ClearState(LauncherButton::STATE_ATTENTION);
       break;
     case STATUS_RUNNING:
       button->ClearState(LauncherButton::STATE_ACTIVE);
       button->AddState(LauncherButton::STATE_RUNNING);
+      button->ClearState(LauncherButton::STATE_ATTENTION);
       break;
     case STATUS_ACTIVE:
       button->AddState(LauncherButton::STATE_ACTIVE);
       button->ClearState(LauncherButton::STATE_RUNNING);
+      button->ClearState(LauncherButton::STATE_ATTENTION);
+      break;
+    case STATUS_ATTENTION:
+      button->ClearState(LauncherButton::STATE_ACTIVE);
+      button->ClearState(LauncherButton::STATE_RUNNING);
+      button->AddState(LauncherButton::STATE_ATTENTION);
       break;
   }
 }