Update {virtual,override} to follow C++11 style in device.

device/hid/hid_connection_win.cc

 // 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.
 
 #include "device/hid/hid_connection_win.h"
 
 #include <cstring>
 
 #include "base/bind.h"
 #include "base/files/file.h"
@@ skipping 22 matching lines @@
   typedef base::Callback<void(PendingHidTransfer*, bool)> Callback;
 
   PendingHidTransfer(scoped_refptr<net::IOBuffer> buffer,
                      const Callback& callback);
 
   void TakeResultFromWindowsAPI(BOOL result);
 
   OVERLAPPED* GetOverlapped() { return &overlapped_; }
 
   // Implements base::win::ObjectWatcher::Delegate.
-  virtual void OnObjectSignaled(HANDLE object) override;
+  void OnObjectSignaled(HANDLE object) override;
 
   // Implements base::MessageLoop::DestructionObserver
-  virtual void WillDestroyCurrentMessageLoop() override;
+  void WillDestroyCurrentMessageLoop() override;
 
   // The buffer isn't used by this object but it's important that a reference
   // to it is held until the transfer completes.
   scoped_refptr<net::IOBuffer> buffer_;
   Callback callback_;
   OVERLAPPED overlapped_;
   base::win::ScopedHandle event_;
   base::win::ObjectWatcher watcher_;
 
  private:
   friend class base::RefCounted<PendingHidTransfer>;
 
-  virtual ~PendingHidTransfer();
+  ~PendingHidTransfer() override;
 
   DISALLOW_COPY_AND_ASSIGN(PendingHidTransfer);
 };
 
 PendingHidTransfer::PendingHidTransfer(
     scoped_refptr<net::IOBuffer> buffer,
     const PendingHidTransfer::Callback& callback)
     : buffer_(buffer),
       callback_(callback),
       event_(CreateEvent(NULL, FALSE, FALSE, NULL)) {
@@ skipping 178 matching lines @@
   if (GetOverlappedResult(
           file_.Get(), transfer->GetOverlapped(), &bytes_transferred, FALSE)) {
     callback.Run(true);
   } else {
     HID_PLOG(EVENT) << "HID write failed";
     callback.Run(false);
   }
 }
 
 }  // namespace device