ash::internal::TrayBluetooth: Hide spinner if discovery session stops.

ash/system/tray/system_tray_delegate.h

 // Copyright (c) 2012 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_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 282 matching lines @@
   // Shows UI to connect to an unlisted network of type |type|. On Chrome OS
   // |type| corresponds to a Shill network type.
   virtual void ShowOtherNetworkDialog(const std::string& type) = 0;
 
   // Returns whether bluetooth capability is available.
   virtual bool GetBluetoothAvailable() = 0;
 
   // Returns whether bluetooth is enabled.
   virtual bool GetBluetoothEnabled() = 0;
 
+  // Returns whether the delegate has initiated a bluetooth discovery session.
+  virtual bool GetBluetoothDiscovering() = 0;
+
   // Shows UI for changing proxy settings.
   virtual void ChangeProxySettings() = 0;
 
   // Returns VolumeControlDelegate.
   virtual VolumeControlDelegate* GetVolumeControlDelegate() const = 0;
 
   // Sets VolumeControlDelegate.
   virtual void SetVolumeControlDelegate(
       scoped_ptr<VolumeControlDelegate> delegate) = 0;
 
@@ skipping 14 matching lines @@
   // Returns true when |network| is behind captive portal.
   virtual bool IsNetworkBehindCaptivePortal(
       const std::string& service_path) const = 0;
 
   // Returns true when the Search key is configured to be treated as Caps Lock.
   virtual bool IsSearchKeyMappedToCapsLock() = 0;
 };
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_