Reland "Add Linux support for the Bluetooth API"

device/bluetooth/bluetooth_audio_sink_bluez.h

 // Copyright 2015 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 DEVICE_BLUETOOTH_BLUETOOTH_AUDIO_SINK_CHROMEOS_H_
-#define DEVICE_BLUETOOTH_BLUETOOTH_AUDIO_SINK_CHROMEOS_H_
+#ifndef DEVICE_BLUETOOTH_BLUETOOTH_AUDIO_SINK_BLUEZ_H_
+#define DEVICE_BLUETOOTH_BLUETOOTH_AUDIO_SINK_BLUEZ_H_
 
 #include <stdint.h>
 #include <string>
 #include <vector>
 
 #include "base/files/file.h"
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/observer_list.h"
 #include "dbus/file_descriptor.h"
 #include "dbus/object_path.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 #include "device/bluetooth/bluetooth_audio_sink.h"
 #include "device/bluetooth/bluetooth_export.h"
 #include "device/bluetooth/dbus/bluetooth_media_client.h"
 #include "device/bluetooth/dbus/bluetooth_media_endpoint_service_provider.h"
 #include "device/bluetooth/dbus/bluetooth_media_transport_client.h"
 
-namespace chromeos {
+namespace bluez {
 
-class BluetoothAudioSinkChromeOSTest;
+class BluetoothAudioSinkBlueZTest;
 
-class DEVICE_BLUETOOTH_EXPORT BluetoothAudioSinkChromeOS
+class DEVICE_BLUETOOTH_EXPORT BluetoothAudioSinkBlueZ
     : public device::BluetoothAudioSink,
       public device::BluetoothAdapter::Observer,
       public bluez::BluetoothMediaClient::Observer,
       public bluez::BluetoothMediaTransportClient::Observer,
       public bluez::BluetoothMediaEndpointServiceProvider::Delegate,
       public base::MessageLoopForIO::Watcher {
  public:
-  explicit BluetoothAudioSinkChromeOS(
+  explicit BluetoothAudioSinkBlueZ(
       scoped_refptr<device::BluetoothAdapter> adapter);
 
   // device::BluetoothAudioSink overrides.
   // Unregisters a BluetoothAudioSink. |callback| should handle
   // the clean-up after the audio sink is deleted successfully, otherwise
   // |error_callback| will be called.
   void Unregister(
       const base::Closure& callback,
       const device::BluetoothAudioSink::ErrorCallback& error_callback) override;
   void AddObserver(BluetoothAudioSink::Observer* observer) override;
   void RemoveObserver(BluetoothAudioSink::Observer* observer) override;
   device::BluetoothAudioSink::State GetState() const override;
   uint16_t GetVolume() const override;
 
   // Registers a BluetoothAudioSink. User applications can use |options| to
   // configure the audio sink. |callback| will be executed if the audio sink is
   // successfully registered, otherwise |error_callback| will be called. Called
-  // by BluetoothAdapterChromeOS.
+  // by BluetoothAdapterBlueZ.
   void Register(
       const device::BluetoothAudioSink::Options& options,
       const base::Closure& callback,
       const device::BluetoothAudioSink::ErrorCallback& error_callback);
 
   // Returns a pointer to the media endpoint object. This function should be
   // used for testing purpose only.
   bluez::BluetoothMediaEndpointServiceProvider* GetEndpointServiceProvider();
 
  private:
-  ~BluetoothAudioSinkChromeOS() override;
+  ~BluetoothAudioSinkBlueZ() override;
 
   // device::BluetoothAdapter::Observer overrides.
   void AdapterPresentChanged(device::BluetoothAdapter* adapter,
                              bool present) override;
   void AdapterPoweredChanged(device::BluetoothAdapter* adapter,
                              bool powered) override;
 
   // bluez::BluetoothMediaClient::Observer overrides.
   void MediaRemoved(const dbus::ObjectPath& object_path) override;
 
@@ skipping 72 matching lines @@
   void OnReleaseFDFailed(const std::string& error_name,
                          const std::string& error_message);
 
   // Helper functions to clean up media, media transport and media endpoint.
   // Called when the |state_| changes to either STATE_INVALID or
   // STATE_DISCONNECTED.
   void ResetMedia();
   void ResetTransport();
   void ResetEndpoint();
 
-  // The connection state between the BluetoothAudioSinkChromeOS and the remote
+  // The connection state between the BluetoothAudioSinkBlueZ and the remote
   // device.
   device::BluetoothAudioSink::State state_;
 
   // The volume control by the remote device during the streaming. The valid
   // range of volume is 0-127, and 128 is used to represent invalid volume.
   uint16_t volume_;
 
   // Read MTU of the file descriptor acquired via Media Transport object.
   uint16_t read_mtu_;
 
@@ skipping 18 matching lines @@
   // Object path of the media object being used.
   dbus::ObjectPath media_path_;
 
   // Object path of the transport object being used.
   dbus::ObjectPath transport_path_;
 
   // Object path of the media endpoint object being used.
   dbus::ObjectPath endpoint_path_;
 
   // BT adapter which the audio sink binds to. |adapter_| should outlive
-  // a BluetoothAudioSinkChromeOS object.
+  // a BluetoothAudioSinkBlueZ object.
   scoped_refptr<device::BluetoothAdapter> adapter_;
 
   // Options used to initiate Media Endpoint and select configuration for the
   // transport.
   device::BluetoothAudioSink::Options options_;
 
   // Media Endpoint object owned by the audio sink object.
   scoped_ptr<bluez::BluetoothMediaEndpointServiceProvider> media_endpoint_;
 
   // List of observers interested in event notifications from us. Objects in
-  // |observers_| are expected to outlive a BluetoothAudioSinkChromeOS object.
+  // |observers_| are expected to outlive a BluetoothAudioSinkBlueZ object.
   base::ObserverList<BluetoothAudioSink::Observer> observers_;
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<BluetoothAudioSinkChromeOS> weak_ptr_factory_;
+  base::WeakPtrFactory<BluetoothAudioSinkBlueZ> weak_ptr_factory_;
 
-  DISALLOW_COPY_AND_ASSIGN(BluetoothAudioSinkChromeOS);
+  DISALLOW_COPY_AND_ASSIGN(BluetoothAudioSinkBlueZ);
 };
 
-}  // namespace chromeos
+}  // namespace bluez
 
-#endif  // DEVICE_BLUETOOTH_BLUETOOTH_AUDIO_SINK_CHROMEOS_H_
+#endif  // DEVICE_BLUETOOTH_BLUETOOTH_AUDIO_SINK_BLUEZ_H_