HID: Support top-level collection usages in device info.

device/hid/hid_connection_linux.h

 // Copyright (c) 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_HID_HID_CONNECTION_LINUX_H_
 #define DEVICE_HID_HID_CONNECTION_LINUX_H_
 
 #include <queue>
 
 #include "base/files/file.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_pump_libevent.h"
 #include "device/hid/hid_connection.h"
 #include "device/hid/hid_device_info.h"
 #include "device/hid/udev_common.h"
 
 namespace device {
 
 class HidConnectionLinux : public HidConnection,
                            public base::MessagePumpLibevent::Watcher {
  public:
-  HidConnectionLinux(HidDeviceInfo device_info,
-                     ScopedUdevDevicePtr udev_raw_device);
+  HidConnectionLinux(HidDeviceInfo device_info, std::string dev_node);
 
   virtual void Read(scoped_refptr<net::IOBufferWithSize> buffer,
                     const IOCallback& callback) OVERRIDE;
   virtual void Write(uint8_t report_id,
                      scoped_refptr<net::IOBufferWithSize> buffer,
                      const IOCallback& callback) OVERRIDE;
   virtual void GetFeatureReport(uint8_t report_id,
                                 scoped_refptr<net::IOBufferWithSize> buffer,
                                 const IOCallback& callback) OVERRIDE;
   virtual void SendFeatureReport(uint8_t report_id,
                                  scoped_refptr<net::IOBufferWithSize> buffer,
                                  const IOCallback& callback) OVERRIDE;
 
   // Implements base::MessagePumpLibevent::Watcher
   virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE;
   virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE;
 
  private:
   friend class base::RefCountedThreadSafe<HidConnectionLinux>;
   virtual ~HidConnectionLinux();
 
-  static bool FindHidrawDevNode(udev_device* parent, std::string* result);
-
   void ProcessReadQueue();
   void Disconnect();
 
   base::File device_file_;
   base::MessagePumpLibevent::FileDescriptorWatcher device_file_watcher_;
 
   std::queue<PendingHidReport> pending_reports_;
   std::queue<PendingHidRead> pending_reads_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(HidConnectionLinux);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_HID_HID_CONNECTION_LINUX__