Revert 262175 "* Replace "read" method with onReceiveXxx events."

trunk/src/device/bluetooth/bluetooth_device_mac.mm

Index: trunk/src/device/bluetooth/bluetooth_device_mac.mm
===================================================================
--- trunk/src/device/bluetooth/bluetooth_device_mac.mm	(revision 262179)
+++ trunk/src/device/bluetooth/bluetooth_device_mac.mm	(working copy)
@@ -36,8 +36,6 @@
 
 namespace {
 
-const char kFailedToConnect[] = "Connection failed";
-
 // Converts |uuid| to a IOBluetoothSDPUUID instance.
 //
 // |uuid| must be in the format of XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.
@@ -196,13 +194,13 @@
 }
 
 void BluetoothDeviceMac::ConnectToProfile(
-    BluetoothProfile* profile,
+    device::BluetoothProfile* profile,
     const base::Closure& callback,
-    const ConnectToProfileErrorCallback& error_callback) {
+    const ErrorCallback& error_callback) {
   if (static_cast<BluetoothProfileMac*>(profile)->Connect(device_))
     callback.Run();
   else
-    error_callback.Run(kFailedToConnect);
+    error_callback.Run();
 }
 
 void BluetoothDeviceMac::SetOutOfBandPairingData(