Some more fixes to cros system tray icons (esp. screen tray items)

ash/common/system/chromeos/screen_security/screen_share_tray_item.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/system/chromeos/screen_security/screen_share_tray_item.h"
 
 #include <utility>
 
 #include "ash/common/system/system_notifier.h"
 #include "ash/common/system/tray/system_tray_notifier.h"
@@ skipping 15 matching lines @@
 
 ScreenShareTrayItem::ScreenShareTrayItem(SystemTray* system_tray)
     : ScreenTrayItem(system_tray, UMA_SCREEN_SHARE) {
   WmShell::Get()->system_tray_notifier()->AddScreenShareObserver(this);
 }
 
 ScreenShareTrayItem::~ScreenShareTrayItem() {
   WmShell::Get()->system_tray_notifier()->RemoveScreenShareObserver(this);
 }
 
-views::View* ScreenShareTrayItem::CreateTrayView(LoginStatus status) {
-  set_tray_view(new tray::ScreenTrayView(this));
-  return tray_view();
-}
-
 views::View* ScreenShareTrayItem::CreateDefaultView(LoginStatus status) {
   set_default_view(new tray::ScreenStatusView(
       this,
       l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_SCREEN_SHARE_BEING_HELPED),
       l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_SCREEN_SHARE_STOP)));
   return default_view();
 }
 
 void ScreenShareTrayItem::CreateOrUpdateNotification() {
   base::string16 help_label_text;
@@ skipping 42 matching lines @@
 }
 
 void ScreenShareTrayItem::OnScreenShareStop() {
   // We do not need to run the stop callback
   // when screening is stopped externally.
   set_is_started(false);
   Update();
 }
 
 }  // namespace ash