Add usb_service::UsbDeviceFilter class for device matching.

components/usb_service/usb_device.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 COMPONENTS_USB_SERVICE_USB_DEVICE_H_
 #define COMPONENTS_USB_SERVICE_USB_DEVICE_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
@@ skipping 13 matching lines @@
   // Accessors to basic information.
   uint16 vendor_id() const { return vendor_id_; }
   uint16 product_id() const { return product_id_; }
   uint32 unique_id() const { return unique_id_; }
 
 #if defined(OS_CHROMEOS)
   // On ChromeOS, if an interface of a claimed device is not claimed, the
   // permission broker can change the owner of the device so that the unclaimed
   // interfaces can be used. If this argument is missing, permission broker will
   // not be used and this method fails if the device is claimed.
-  virtual void RequestUsbAcess(
+  virtual void RequestUsbAccess(
       int interface_id,
       const base::Callback<void(bool success)>& callback) = 0;
 #endif  // OS_CHROMEOS
 
   // Creates a UsbDeviceHandle for further manipulation.
   // Blocking method. Must be called on FILE thread.
   virtual scoped_refptr<UsbDeviceHandle> Open() = 0;
 
   // Explicitly closes a device handle. This method will be automatically called
   // by the destructor of a UsbDeviceHandle as well.
@@ skipping 18 matching lines @@
   const uint16 vendor_id_;
   const uint16 product_id_;
   const uint32 unique_id_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbDevice);
 };
 
 }  // namespace usb_service
 
 #endif  // COMPONENTS_USB_SERVICE_USB_DEVICE_H_