ash: Add a bluetooth entry in the uber tray.

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_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 12 matching lines @@
   NetworkIconInfo();
   ~NetworkIconInfo();
 
   bool highlight;
   SkBitmap image;
   string16 name;
   string16 description;
   std::string service_path;
 };
 
+struct ASH_EXPORT BluetoothDeviceInfo {
+  BluetoothDeviceInfo();
+  ~BluetoothDeviceInfo();
+
+  std::string address;
+  string16 display_name;
+  bool connected;
+};
+
+typedef std::vector<BluetoothDeviceInfo> BluetoothDeviceList;
+
 struct PowerSupplyStatus;
 
 class SystemTrayDelegate {
  public:
   virtual ~SystemTrayDelegate() {}
 
   // Gets information about the logged in user.
   virtual const std::string GetUserDisplayName() const = 0;
   virtual const std::string GetUserEmail() const = 0;
   virtual const SkBitmap& GetUserImage() const = 0;
@@ skipping 43 matching lines @@
 
   // Attempts to shut down the system.
   virtual void ShutDown() = 0;
 
   // Attempts to sign out the user.
   virtual void SignOut() = 0;
 
   // Attempts to lock the screen.
   virtual void RequestLockScreen() = 0;
 
+  // Returns a list of available bluetooth devices.
+  virtual BluetoothDeviceList GetAvailableBluetoothDevices() = 0;
+
   // Returns information about the most relevant network. Relevance is
   // determined by the implementor (e.g. a connecting network may be more
   // relevant over a connected network etc.)
   virtual NetworkIconInfo GetMostRelevantNetworkIcon(bool large) = 0;
 
   // Returns information about the available networks.
   virtual void GetAvailableNetworks(std::vector<NetworkIconInfo>* list) = 0;
 
   // Connects to the network specified by the unique id.
   virtual void ConnectToNetwork(const std::string& network_id) = 0;
@@ skipping 19 matching lines @@
   // Returns whether cellular networking is enabled.
   virtual bool GetCellularEnabled() = 0;
 
   // Shows UI for changing proxy settings.
   virtual void ChangeProxySettings() = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_