Implement BluetoothRemoteGattServiceWin and related unit tests

device/bluetooth/bluetooth_task_manager_win.h

Index: device/bluetooth/bluetooth_task_manager_win.h
diff --git a/device/bluetooth/bluetooth_task_manager_win.h b/device/bluetooth/bluetooth_task_manager_win.h
index 56ecbef0417357c5d241e30c35e61521af3a4096..354a5793c4fd90bf696aaf5a6011ea44c0c7ea77 100644
--- a/device/bluetooth/bluetooth_task_manager_win.h
+++ b/device/bluetooth/bluetooth_task_manager_win.h
@@ -18,6 +18,7 @@
 #include "base/win/scoped_handle.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 #include "device/bluetooth/bluetooth_export.h"
+#include "device/bluetooth/bluetooth_low_energy_win.h"
 
 namespace base {
 
@@ -103,6 +104,9 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothTaskManagerWin
   explicit BluetoothTaskManagerWin(
       scoped_refptr<base::SequencedTaskRunner> ui_task_runner);
 
+  static BluetoothUUID BluetoothLowEnergyUuidToBluetoothUuid(
+      const BTH_LE_UUID& bth_le_uuid);
+
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
@@ -118,6 +122,21 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothTaskManagerWin
   void PostStartDiscoveryTask();
   void PostStopDiscoveryTask();
 
+  // Callbacks of asynchronous operations of GATT service.
+  typedef base::Callback<
+      void(scoped_ptr<BTH_LE_GATT_CHARACTERISTIC>, uint16_t, HRESULT)>
+      GetGattIncludedCharacteristicsCallback;
+
+  // Get all included characteristics of a given service. The service is
+  // uniquely identified by its |uuid| and |attribute_handle| with service
+  // device |service_path|. The result is returned asynchronously through
+  // |callback|.
+  void PostGetGattIncludedCharacteristics(
+      const base::FilePath& service_path,
+      const BluetoothUUID& uuid,
+      uint16_t attribute_handle,
+      const GetGattIncludedCharacteristicsCallback& callback);
+
  private:
   friend class base::RefCountedThreadSafe<BluetoothTaskManagerWin>;
   friend class BluetoothTaskManagerWinTest;
@@ -208,6 +227,13 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothTaskManagerWin
       const std::string device_address,
       ScopedVector<ServiceRecordState>* service_record_states);
 
+  // GATT service related functions.
+  void GetGattIncludedCharacteristics(
+      base::FilePath device_path,
+      BluetoothUUID uuid,
+      uint16_t attribute_handle,
+      const GetGattIncludedCharacteristicsCallback& callback);
+
   // UI task runner reference.
   scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;