Revert 247926 "HID backend"

trunk/src/device/hid/hid_connection_win.h

Index: trunk/src/device/hid/hid_connection_win.h
===================================================================
--- trunk/src/device/hid/hid_connection_win.h	(revision 247933)
+++ trunk/src/device/hid/hid_connection_win.h	(working copy)
@@ -1,96 +0,0 @@
-// 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 DEVICE_HID_HID_CONNECTION_WIN_H_
-#define DEVICE_HID_HID_CONNECTION_WIN_H_
-
-#include <set>
-#include <windows.h>
-
-#include "base/callback.h"
-#include "base/memory/ref_counted.h"
-#include "base/message_loop/message_loop.h"
-#include "base/threading/thread_checker.h"
-#include "base/win/object_watcher.h"
-#include "device/hid/hid_connection.h"
-#include "device/hid/hid_device_info.h"
-#include "net/base/io_buffer.h"
-
-namespace device {
-
-class HidConnectionWin : public HidConnection {
- public:
-  struct PendingTransfer : public base::RefCounted<PendingTransfer>,
-                           public base::win::ObjectWatcher::Delegate,
-                           public base::MessageLoop::DestructionObserver {
-   public:
-    PendingTransfer(scoped_refptr<HidConnectionWin> conn,
-                    scoped_refptr<net::IOBuffer> target,
-                    scoped_refptr<net::IOBuffer> receiving,
-                    bool is_input,
-                    IOCallback callback);
-
-    void TakeResultFromWindowsAPI(BOOL result);
-
-    OVERLAPPED* GetOverlapped() { return &overlapped_; }
-
-    // Implements base::win::ObjectWatcher::Delegate.
-    virtual void OnObjectSignaled(HANDLE object) OVERRIDE;
-
-    // Implements base::MessageLoop::DestructionObserver
-    virtual void WillDestroyCurrentMessageLoop() OVERRIDE;
-
-
-   private:
-    friend class base::RefCounted<PendingTransfer>;
-    friend class HidConnectionWin;
-
-    virtual ~PendingTransfer();
-
-    scoped_refptr<HidConnectionWin> conn_;
-    bool is_input_;
-    scoped_refptr<net::IOBuffer> target_;
-    scoped_refptr<net::IOBuffer> receiving_;
-    IOCallback callback_;
-    OVERLAPPED overlapped_;
-    base::win::ScopedHandle event_;
-    base::win::ObjectWatcher watcher_;
-
-    DISALLOW_COPY_AND_ASSIGN(PendingTransfer);
-  };
-
-  HidConnectionWin(HidDeviceInfo device_info);
-
-  virtual void Read(scoped_refptr<net::IOBuffer> buffer,
-                    size_t size,
-                    const IOCallback& callback) OVERRIDE;
-  virtual void Write(scoped_refptr<net::IOBuffer> buffer,
-                     size_t size,
-                     const IOCallback& callback) OVERRIDE;
-  virtual void GetFeatureReport(scoped_refptr<net::IOBuffer> buffer,
-                                size_t size,
-                                const IOCallback& callback) OVERRIDE;
-  virtual void SendFeatureReport(scoped_refptr<net::IOBuffer> buffer,
-                                 size_t size,
-                                 const IOCallback& callback) OVERRIDE;
-
-  void OnTransferFinished(scoped_refptr<PendingTransfer> transfer);
-  void OnTransferCanceled(scoped_refptr<PendingTransfer> transfer);
-
-  bool available() const { return available_; }
-
- private:
-  ~HidConnectionWin();
-
-  base::win::ScopedHandle file_;
-  std::set<scoped_refptr<PendingTransfer> > transfers_;
-
-  DISALLOW_COPY_AND_ASSIGN(HidConnectionWin);
-
-  bool available_;
-};
-
-}  // namespace device
-
-#endif  // DEVICE_HID_HID_CONNECTION_WIN_H_