Adjust positioning of cros tray bubbles.

ash/common/system/chromeos/audio/tray_audio.h

 // Copyright 2014 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.
 
 #ifndef ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_H_
 #define ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 40 matching lines @@
                                uint32_t changed_metrics) override;
 
   // Overridden from TrayImageItem.
   bool GetInitialVisibility() override;
 
   // Overridden from SystemTrayItem.
   views::View* CreateDefaultView(LoginStatus status) override;
   views::View* CreateDetailedView(LoginStatus status) override;
   void DestroyDefaultView() override;
   void DestroyDetailedView() override;
-  bool ShouldHideArrow() const override;
   bool ShouldShowShelf() const override;
 
   // Overridden from CrasAudioHandler::AudioObserver.
   void OnOutputNodeVolumeChanged(uint64_t node_id, int volume) override;
   void OnOutputMuteChanged(bool mute_on, bool system_adjust) override;
   void OnAudioNodesChanged() override;
   void OnActiveOutputNodeChanged() override;
   void OnActiveInputNodeChanged() override;
 
   // Overridden from chromeos::PowerManagerClient::Observer.
@@ skipping 14 matching lines @@
   bool pop_up_volume_view_;
 
   tray::AudioDetailedView* audio_detail_view_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayAudio);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_H_