Modify TrayItemMore to use enabled status

ash/common/system/tray_accessibility.cc

Index: ash/common/system/tray_accessibility.cc
diff --git a/ash/common/system/tray_accessibility.cc b/ash/common/system/tray_accessibility.cc
index 74344d9017987d0cd84d40d900119ceb587ee0cf..04f3945830e52debee6731d54cf70bd599e3ab86 100644
--- a/ash/common/system/tray_accessibility.cc
+++ b/ash/common/system/tray_accessibility.cc
@@ -85,7 +85,7 @@ namespace tray {
 class DefaultAccessibilityView : public TrayItemMore {
  public:
   explicit DefaultAccessibilityView(SystemTrayItem* owner)
-      : TrayItemMore(owner, true) {
+      : TrayItemMore(owner) {
     base::string16 label =
         l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_ACCESSIBILITY);
     SetLabel(label);