Implementing GATT connection/disconnect on OS X.

device/bluetooth/bluetooth_low_energy_device_mac.mm

Index: device/bluetooth/bluetooth_low_energy_device_mac.mm
diff --git a/device/bluetooth/bluetooth_low_energy_device_mac.mm b/device/bluetooth/bluetooth_low_energy_device_mac.mm
index 64b74920e18273b823a13b79b914ec2b474311de..98f4b729aa4dab106eb61b24ab654ffc949ff6b4 100644
--- a/device/bluetooth/bluetooth_low_energy_device_mac.mm
+++ b/device/bluetooth/bluetooth_low_energy_device_mac.mm
@@ -126,7 +126,7 @@ bool BluetoothLowEnergyDeviceMac::IsConnectable() const {
 }
 
 bool BluetoothLowEnergyDeviceMac::IsConnecting() const {
-  return false;
+  return (GetPeripheralState() == CBPeripheralStateConnecting);
 }
 
 BluetoothDevice::UUIDList BluetoothLowEnergyDeviceMac::GetUUIDs() const {
@@ -212,12 +212,6 @@ void BluetoothLowEnergyDeviceMac::ConnectToServiceInsecurely(
   NOTIMPLEMENTED();
 }
 
-void BluetoothLowEnergyDeviceMac::CreateGattConnection(
-    const GattConnectionCallback& callback,
-    const ConnectErrorCallback& error_callback) {
-  NOTIMPLEMENTED();
-}
-
 NSDate* BluetoothLowEnergyDeviceMac::GetLastUpdateTime() const {
   return last_update_time_.get();
 }
@@ -227,15 +221,19 @@ std::string BluetoothLowEnergyDeviceMac::GetDeviceName() const {
 }
 
 void BluetoothLowEnergyDeviceMac::CreateGattConnectionImpl() {
-  // Mac implementation does not yet use the default CreateGattConnection
-  // implementation. http://crbug.com/520774
-  NOTIMPLEMENTED();
+  BluetoothAdapterMac* adapter =
+      static_cast<BluetoothAdapterMac*>(this->adapter_);
+  adapter->CreateGattConnection(this);
+}
+
+void BluetoothLowEnergyDeviceMac::GattConnected() {
+  this->DidConnectGatt();
 }
 
 void BluetoothLowEnergyDeviceMac::DisconnectGatt() {
-  // Mac implementation does not yet use the default CreateGattConnection
-  // implementation. http://crbug.com/520774
-  NOTIMPLEMENTED();
+  BluetoothAdapterMac* adapter =
+      static_cast<BluetoothAdapterMac*>(this->adapter_);
+  adapter->DisconnectGatt(this);
 }
 
 // static