bluetooth: Make device/bluetooth a shared library component.

device/bluetooth/bluetooth_discovery_session.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 DEVICE_BLUETOOTH_BLUETOOTH_DISCOVERY_SESSION_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_DISCOVERY_SESSION_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "device/bluetooth/bluetooth_export.h"
 
 namespace device {
 
 class BluetoothAdapter;
 
 // BluetoothDiscoverySession represents a current active or inactive device
 // discovery session. Instances of this class are obtained by calling
 // BluetoothAdapter::StartDiscoverySession. The Bluetooth adapter will be
 // constantly searching for nearby devices, as long as at least one instance
 // of an active BluetoothDiscoverySession exists. A BluetoothDiscoverySession is
 // considered active, as long as the adapter is discovering AND the owner of the
 // instance has not called BluetoothDiscoverySession::Stop. A
 // BluetoothDiscoverySession might unexpectedly become inactive, if the adapter
 // unexpectedly stops discovery. Users can implement the
 // AdapterDiscoveringChanged method of the BluetoothAdapter::Observer interface
 // to be notified of such a change and promptly request a new
 // BluetoothDiscoverySession if their existing sessions have become inactive.
-class BluetoothDiscoverySession {
+class DEVICE_BLUETOOTH_EXPORT BluetoothDiscoverySession {
  public:
   // The ErrorCallback is used by methods to asynchronously report errors.
   typedef base::Closure ErrorCallback;
 
   // Destructor automatically terminates the discovery session. If this
   // results in a call to the underlying system to stop device discovery
   // (i.e. this instance represents the last active discovery session),
   // the call may not always succeed. To be notified of such failures,
   // users are highly encouraged to call BluetoothDiscoverySession::Stop,
   // instead of relying on the destructor.
@@ skipping 41 matching lines @@
   // 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<BluetoothDiscoverySession> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothDiscoverySession);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_DISCOVERY_SESSION_H_