chrome.bluetooth API improvements.

device/bluetooth/bluetooth_socket_mac.h

Index: device/bluetooth/bluetooth_socket_mac.h
diff --git a/device/bluetooth/bluetooth_socket_mac.h b/device/bluetooth/bluetooth_socket_mac.h
index 4d7bfb7e018fbca160366647fab4b45c536e5360..55eb63bacffffd144400188e1e0d2061dbcadce7 100644
--- a/device/bluetooth/bluetooth_socket_mac.h
+++ b/device/bluetooth/bluetooth_socket_mac.h
@@ -21,10 +21,7 @@ class IOBluetoothSDPServiceRecord;
 #endif
 
 namespace net {
-
-class DrainableIOBuffer;
-class GrowableIOBuffer;
-
+class IOBuffer;
 }  // namespace net
 
 namespace device {
@@ -43,9 +40,15 @@ class BluetoothSocketMac : public BluetoothSocket {
       IOBluetoothSDPServiceRecord* record);
 
   // BluetoothSocket override
-  virtual bool Receive(net::GrowableIOBuffer* buffer) OVERRIDE;
-  virtual bool Send(net::DrainableIOBuffer* buffer) OVERRIDE;
-  virtual std::string GetLastErrorMessage() const OVERRIDE;
+  virtual void Disconnect(const base::Closure& callback) OVERRIDE;
+  virtual void Receive(int count,
+                       const ReceiveCompletionCallback& success_callback,
+                       const ReceiveErrorCompletionCallback& error_callback)
+      OVERRIDE;
+  virtual void Send(scoped_refptr<net::IOBuffer> buffer,
+                    int buffer_size,
+                    const SendCompletionCallback& success_callback,
+                    const ErrorCompletionCallback& error_callback) OVERRIDE;
 
   // called by BluetoothRFCOMMChannelDelegate.
   void OnDataReceived(IOBluetoothRFCOMMChannel* rfcomm_channel,