Bluetooth: gather usage metrics

device/bluetooth/bluetooth_device_experimental_chromeos.h

Index: device/bluetooth/bluetooth_device_experimental_chromeos.h
diff --git a/device/bluetooth/bluetooth_device_experimental_chromeos.h b/device/bluetooth/bluetooth_device_experimental_chromeos.h
index ff31ddb68f7eec2d9fde9fe3a72eb01ad6980366..8520089aa3f08233c5ef9720fc277202b5a1ad09 100644
--- a/device/bluetooth/bluetooth_device_experimental_chromeos.h
+++ b/device/bluetooth/bluetooth_device_experimental_chromeos.h
@@ -27,7 +27,11 @@ class BluetoothDeviceExperimentalChromeOS
       private chromeos::ExperimentalBluetoothAgentServiceProvider::Delegate {
  public:
   // BluetoothDevice override
+  virtual uint32 GetBluetoothClass() const OVERRIDE;
   virtual std::string GetAddress() const OVERRIDE;
+  virtual uint16 GetVendorID() const OVERRIDE;
+  virtual uint16 GetProductID() const OVERRIDE;
+  virtual uint16 GetDeviceID() const OVERRIDE;
   virtual bool IsPaired() const OVERRIDE;
   virtual bool IsConnected() const OVERRIDE;
   virtual bool IsConnectable() const OVERRIDE;
@@ -71,7 +75,6 @@ class BluetoothDeviceExperimentalChromeOS
 
  protected:
    // BluetoothDevice override
-  virtual uint32 GetBluetoothClass() const OVERRIDE;
   virtual std::string GetDeviceName() const OVERRIDE;
 
  private:
@@ -166,6 +169,11 @@ class BluetoothDeviceExperimentalChromeOS
   // pairing. Returns true if any callbacks were run, false if not.
   bool RunPairingCallbacks(Status status);
 
+  // Record the result of pairing as a UMA histogram metric; |success| should
+  // be true if pairing succeeded, and |false| if not - in which case
+  // |error_code| specifies the reason for failure.
+  void RecordPairingResult(bool success, ConnectErrorCode error_code);
+
   // Return the object path of the device; used by
   // BluetoothAdapterExperimentalChromeOS
   const dbus::ObjectPath& object_path() const { return object_path_; }
@@ -184,6 +192,10 @@ class BluetoothDeviceExperimentalChromeOS
   // Passkeys. Generally it is the object that owns this one.
   PairingDelegate* pairing_delegate_;
 
+  // Flag to indicate whether a pairing delegate method has been called during
+  // pairing.
+  bool pairing_delegate_used_;
+
   // During pairing this is set to an instance of a D-Bus agent object
   // intialized with our own class as its delegate.
   scoped_ptr<ExperimentalBluetoothAgentServiceProvider> agent_;