Revert of Update device/usb and its Mojo interface for variable size ISO packets.

device/usb/usb_device_handle_impl.h

 // Copyright 2014 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 DEVICE_USB_USB_DEVICE_HANDLE_IMPL_H_
 #define DEVICE_USB_USB_DEVICE_HANDLE_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 53 matching lines @@
                        TransferRequestType request_type,
                        TransferRecipient recipient,
                        uint8_t request,
                        uint16_t value,
                        uint16_t index,
                        scoped_refptr<net::IOBuffer> buffer,
                        size_t length,
                        unsigned int timeout,
                        const TransferCallback& callback) override;
 
-  void IsochronousTransferIn(
-      uint8_t endpoint,
-      const std::vector<uint32_t>& packet_lengths,
-      unsigned int timeout,
-      const IsochronousTransferCallback& callback) override;
-
-  void IsochronousTransferOut(
-      uint8_t endpoint,
-      scoped_refptr<net::IOBuffer> buffer,
-      const std::vector<uint32_t>& packet_lengths,
-      unsigned int timeout,
-      const IsochronousTransferCallback& callback) override;
+  void IsochronousTransfer(UsbEndpointDirection direction,
+                           uint8_t endpoint_number,
+                           scoped_refptr<net::IOBuffer> buffer,
+                           size_t length,
+                           unsigned int packets,
+                           unsigned int packet_length,
+                           unsigned int timeout,
+                           const TransferCallback& callback) override;
 
   void GenericTransfer(UsbEndpointDirection direction,
                        uint8_t endpoint_number,
                        scoped_refptr<net::IOBuffer> buffer,
                        size_t length,
                        unsigned int timeout,
                        const TransferCallback& callback) override;
   bool FindInterfaceByEndpoint(uint8_t endpoint_address,
                                uint8_t* interface_number) override;
 
@@ skipping 50 matching lines @@
       TransferRecipient recipient,
       uint8_t request,
       uint16_t value,
       uint16_t index,
       scoped_refptr<net::IOBuffer> buffer,
       size_t length,
       unsigned int timeout,
       scoped_refptr<base::TaskRunner> callback_task_runner,
       const TransferCallback& callback);
 
-  void IsochronousTransferInInternal(
+  void IsochronousTransferInternal(
       uint8_t endpoint_address,
-      const std::vector<uint32_t>& packet_lengths,
+      scoped_refptr<net::IOBuffer> buffer,
+      size_t length,
+      unsigned int packets,
+      unsigned int packet_length,
       unsigned int timeout,
       scoped_refptr<base::TaskRunner> callback_task_runner,
-      const IsochronousTransferCallback& callback);
-
-  void IsochronousTransferOutInternal(
-      uint8_t endpoint_address,
-      scoped_refptr<net::IOBuffer> buffer,
-      const std::vector<uint32_t>& packet_lengths,
-      unsigned int timeout,
-      scoped_refptr<base::TaskRunner> callback_task_runner,
-      const IsochronousTransferCallback& callback);
+      const TransferCallback& callback);
 
   void GenericTransferInternal(
       uint8_t endpoint_address,
       scoped_refptr<net::IOBuffer> buffer,
       size_t length,
       unsigned int timeout,
       scoped_refptr<base::TaskRunner> callback_task_runner,
       const TransferCallback& callback);
 
   // Submits a transfer and starts tracking it. Retains the buffer and copies
@@ skipping 30 matching lines @@
   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbDeviceHandleImpl);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_USB_USB_DEVICE_HANDLE_IMPL_H_