Bluetooth: gather usage metrics

device/bluetooth/bluetooth_device.h

Index: device/bluetooth/bluetooth_device.h
diff --git a/device/bluetooth/bluetooth_device.h b/device/bluetooth/bluetooth_device.h
index c48fff740bf8885c2bef893650a2a3b3905501a6..e442080774414da6edc9e39f66ba80c2ac3560bd 100644
--- a/device/bluetooth/bluetooth_device.h
+++ b/device/bluetooth/bluetooth_device.h
@@ -167,10 +167,24 @@ class BluetoothDevice {
 
   virtual ~BluetoothDevice();
 
+  // Returns the Bluetooth class of the device, used by GetDeviceType()
+  // and metrics logging,
+  virtual uint32 GetBluetoothClass() const = 0;
+
   // Returns the Bluetooth of address the device. This should be used as
   // a unique key to identify the device and copied where needed.
   virtual std::string GetAddress() const = 0;
 
+  // Returns the Vendor ID of the device, where available.
+  virtual uint16 GetVendorID() const = 0;
+
+  // Returns the Product ID of the device, where available.
+  virtual uint16 GetProductID() const = 0;
+
+  // Returns the Device ID of the device, typically the release or version
+  // number in BCD format, where available.
+  virtual uint16 GetDeviceID() const = 0;
+
   // Returns the name of the device suitable for displaying, this may
   // be a synthesied string containing the address and localized type name
   // if the device has no obtained name.
@@ -344,9 +358,6 @@ class BluetoothDevice {
  protected:
   BluetoothDevice();
 
-  // Returns the Bluetooth class of the device, used by GetDeviceType().
-  virtual uint32 GetBluetoothClass() const = 0;
-
   // Returns the internal name of the Bluetooth device, used by GetName().
   virtual std::string GetDeviceName() const = 0;