bluetooth: android: Initial Low Energy Discovery Sessions.

device/bluetooth/bluetooth_adapter_android.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_ADAPTER_ANDROID_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_ANDROID_H_
 
 #include "base/android/jni_android.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/weak_ptr.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 
 namespace base {
 class SequencedTaskRunner;
 }  // namespace base
 
 using base::android::ScopedJavaLocalRef;
 
 namespace device {
 
 // BluetoothAdapterAndroid, along with the Java class
 // org.chromium.device.bluetooth.BluetoothAdapter, implement BluetoothAdapter.
 //
+// The GATT Profile over Low Energy is supported, but not Classic Bluetooth at
+// this time. LE GATT support has been initially built out to support Web
+// Bluetooth, which does not need other Bluetooth features. There is no
+// technical reason they can not be supported should a need arrise.
+//
 // BluetoothAdapterAndroid is reference counted, and owns the lifetime of the
 // Java class BluetoothAdapter via j_adapter_.
 class DEVICE_BLUETOOTH_EXPORT BluetoothAdapterAndroid final
     : public BluetoothAdapter {
  public:
   // Create a BluetoothAdapterAndroid instance.
   //
   // |java_bluetooth_adapter_wrapper| is optional. If it is NULL the adapter
   // will return false for |IsPresent()| and not be functional.
   //
@@ skipping 34 matching lines @@
       const CreateServiceErrorCallback& error_callback) override;
   void RegisterAudioSink(
       const BluetoothAudioSink::Options& options,
       const AcquiredCallback& callback,
       const BluetoothAudioSink::ErrorCallback& error_callback) override;
   void RegisterAdvertisement(
       scoped_ptr<BluetoothAdvertisement::Data> advertisement_data,
       const CreateAdvertisementCallback& callback,
       const CreateAdvertisementErrorCallback& error_callback) override;
 
+  // Handles a scan error event by invalidating all discovery sessions.
+  void OnScanFailed(JNIEnv* env, jobject obj);
+
  protected:
   BluetoothAdapterAndroid();
   ~BluetoothAdapterAndroid() override;
 
   // BluetoothAdapter:
   void AddDiscoverySession(BluetoothDiscoveryFilter* discovery_filter,
                            const base::Closure& callback,
                            const ErrorCallback& error_callback) override;
   void RemoveDiscoverySession(BluetoothDiscoveryFilter* discovery_filter,
                               const base::Closure& callback,
@@ skipping 13 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<BluetoothAdapterAndroid> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothAdapterAndroid);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_ANDROID_H_