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

device/usb/usb_device_handle_impl.h

Index: device/usb/usb_device_handle_impl.h
diff --git a/device/usb/usb_device_handle_impl.h b/device/usb/usb_device_handle_impl.h
index ce2daffcb7cf62a792db625d725234d109e08fec..7d10e42b3f8de3db808157bb883fa7fe396728bf 100644
--- a/device/usb/usb_device_handle_impl.h
+++ b/device/usb/usb_device_handle_impl.h
@@ -71,18 +71,14 @@
                        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,
@@ -153,20 +149,15 @@
       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,