Move string descriptor getters from UsbDeviceHandle to UsbDevice.

chrome/browser/devtools/device/usb/android_usb_device.cc

 // 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.
 
 #include "chrome/browser/devtools/device/usb/android_usb_device.h"
 
 #include <set>
 
 #include "base/barrier_closure.h"
 #include "base/base64.h"
@@ skipping 78 matching lines @@
     zero_mask = endpointIt->maximum_packet_size - 1;
   }
 
   if (inbound_address == 0 || outbound_address == 0)
     return NULL;
 
   if (!usb_handle->ClaimInterface(interface.interface_number))
     return NULL;
 
   base::string16 serial;
-  if (!usb_handle->GetSerial(&serial) || serial.empty())
+  if (!usb_handle->GetDevice()->GetSerialNumber(&serial) || serial.empty())
     return NULL;
 
   return new AndroidUsbDevice(rsa_key,
                               usb_handle,
                               base::UTF16ToASCII(serial),
                               inbound_address,
                               outbound_address,
                               zero_mask,
                               interface.interface_number);
 }
@@ skipping 536 matching lines @@
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       base::Bind(&ReleaseInterface, usb_handle, interface_id_));
 }
 
 void AndroidUsbDevice::SocketDeleted(uint32 socket_id) {
   DCHECK(message_loop_ == base::MessageLoop::current());
 
   sockets_.erase(socket_id);
 }