Changing USB API buffer ownership.

chrome/browser/extensions/api/usb/usb_device_resource.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_
 #define CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_
 
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/memory/linked_ptr.h"
+#include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #include "chrome/browser/extensions/api/api_resource.h"
 #include "chrome/browser/usb/usb_device.h"
 #include "chrome/common/extensions/api/experimental_usb.h"
 
 class UsbDevice;
 
 namespace net {
 class IOBuffer;
 }  // namespace net
@@ skipping 21 matching lines @@
       const api::experimental_usb::ControlTransferInfo& transfer);
   void InterruptTransfer(
       const api::experimental_usb::GenericTransferInfo& transfer);
   void BulkTransfer(const api::experimental_usb::GenericTransferInfo& transfer);
   void IsochronousTransfer(
       const api::experimental_usb::IsochronousTransferInfo& transfer);
 
  private:
   // Invoked by the underlying device's transfer callbacks. Indicates transfer
   // completion to the ApiResource's event notifier.
-  void TransferComplete(net::IOBuffer* buffer, const size_t length,
-                        UsbTransferStatus status);
+  void TransferComplete(UsbTransferStatus status,
+                        scoped_refptr<net::IOBuffer> buffer,
+                        size_t length);
 
   scoped_refptr<UsbDevice> device_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbDeviceResource);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_