Migrate chrome.bluetooth API backend to use device::BluetoothDiscoverySession.

chrome/browser/extensions/api/bluetooth/bluetooth_event_router.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 CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_BLUETOOTH_EVENT_ROUTER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_BLUETOOTH_EVENT_ROUTER_H_
 
 #include <map>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/common/extensions/api/bluetooth.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 #include "device/bluetooth/bluetooth_adapter_factory.h"
 #include "device/bluetooth/bluetooth_socket.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace device {
 
 class BluetoothDevice;
+class BluetoothDiscoverySession;
 class BluetoothProfile;
 
 }  // namespace device
 
 namespace extensions {
 
 // Foward declarations of internal structs.
 struct ExtensionBluetoothSocketRecord;
 struct ExtensionBluetoothProfileRecord;
 
@@ skipping 37 matching lines @@
                   device::BluetoothProfile* bluetooth_profile);
 
   // Unregister the BluetoothProfile corersponding to |uuid| and release the
   // object from this class.
   void RemoveProfile(const std::string& uuid);
 
   // Returns true if the BluetoothProfile corresponding to |uuid| is already
   // registered.
   bool HasProfile(const std::string& uuid) const;
 
+  // Requests that a new device discovery session be initiated for extension
+  // with id |extension_id|. |callback| is called, if a session has been
+  // initiated. |error_callback| is called, if the adapter failed to initiate
+  // the session or if an active session already exists for the extension.
+  void StartDiscoverySession(device::BluetoothAdapter* adapter,
+                             const std::string& extension_id,
+                             const base::Closure& callback,
+                             const base::Closure& error_callback);
+
+  // Requests that the active discovery session that belongs to the extension
+  // with id |extension_id| be terminated. |callback| is called, if the session
+  // successfully ended. |error_callback| is called, if the adapter failed to
+  // terminate the session or if no active discovery session exists for the
+  // extension.
+  void StopDiscoverySession(device::BluetoothAdapter* adapter,
+                            const std::string& extension_id,
+                            const base::Closure& callback,
+                            const base::Closure& error_callback);
+
   // Returns the BluetoothProfile that corresponds to |uuid|. It returns NULL
   // if the BluetoothProfile with |uuid| does not exist.
   device::BluetoothProfile* GetProfile(const std::string& uuid) const;
 
   // Get the BluetoothSocket corresponding to |id|.
   scoped_refptr<device::BluetoothSocket> GetSocket(int id);
 
-  // Sets whether this Profile is responsible for the discovering state of the
-  // adapter.
-  void SetResponsibleForDiscovery(bool responsible);
-  bool IsResponsibleForDiscovery() const;
-
-  // Sets whether or not DeviceAdded events will be dispatched to extensions.
-  void SetSendDiscoveryEvents(bool should_send);
-
   // Dispatch an event that takes a device as a parameter to all renderers.
   void DispatchDeviceEvent(
       const std::string& event_name,
       const extensions::api::bluetooth::Device& device);
 
   // Dispatch an event that takes a connection socket as a parameter to the
   // extension that registered the profile that the socket has connected to.
   void DispatchConnectionEvent(const std::string& extension_id,
                                const std::string& uuid,
                                const device::BluetoothDevice* device,
@@ skipping 11 matching lines @@
 
   // Overridden from content::NotificationObserver
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // Exposed for testing.
   void SetAdapterForTest(device::BluetoothAdapter* adapter) {
     adapter_ = adapter;
   }
+
  private:
   void InitializeAdapterIfNeeded();
   void InitializeAdapter(scoped_refptr<device::BluetoothAdapter> adapter);
   void MaybeReleaseAdapter();
   void DispatchAdapterStateEvent();
   void CleanUpForExtension(const std::string& extension_id);
-
-  bool send_discovery_events_;
-  bool responsible_for_discovery_;
+  void OnStartDiscoverySession(
+      const std::string& extension_id,
+      const base::Closure& callback,
+      scoped_ptr<device::BluetoothDiscoverySession> discovery_session);
 
   content::BrowserContext* browser_context_;
   scoped_refptr<device::BluetoothAdapter> adapter_;
 
   int num_event_listeners_;
 
   // The next id to use for referring to a BluetoothSocket.  We avoid using
   // the fd of the socket because we don't want to leak that information to
   // the extension javascript.
   int next_socket_id_;
 
   typedef std::map<int, ExtensionBluetoothSocketRecord> SocketMap;
   SocketMap socket_map_;
 
-  typedef ScopedVector<extensions::api::bluetooth::Device>
-      DeviceList;
-  DeviceList discovered_devices_;
-
   // A map that maps uuids to ExtensionBluetoothProfileRecord.
   typedef std::map<std::string, ExtensionBluetoothProfileRecord>
       BluetoothProfileMap;
   BluetoothProfileMap bluetooth_profile_map_;
 
+  // A map that maps extension ids to BluetoothDiscoverySession pointers.
+  typedef std::map<std::string, device::BluetoothDiscoverySession*>
+      DiscoverySessionMap;
+  DiscoverySessionMap discovery_session_map_;
+
   content::NotificationRegistrar registrar_;
 
   base::WeakPtrFactory<ExtensionBluetoothEventRouter> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionBluetoothEventRouter);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_BLUETOOTH_EVENT_ROUTER_H_