Implement serial API for Windows.

chrome/browser/extensions/api/serial/serial_api.h

 // Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_API_H_
 #pragma once
 
 #include <string>
 
@@ skipping 31 matching lines @@
  protected:
   virtual ~SerialOpenFunction() {}
 
   // AsyncAPIFunction:
   virtual bool Prepare() OVERRIDE;
   virtual void AsyncWorkStart() OVERRIDE;
   virtual void Work() OVERRIDE;
   virtual bool Respond() OVERRIDE;
 
  private:
-  void OpenPortOnIOThread();
-
   int src_id_;
   std::string port_;
 
   // SerialConnection will take ownership.
   APIResourceEventNotifier* event_notifier_;
 };
 
 class SerialCloseFunction : public AsyncAPIFunction {
  public:
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.serial.close")
@@ skipping 35 matching lines @@
  protected:
   virtual ~SerialWriteFunction();
 
   // AsyncAPIFunction:
   virtual bool Prepare() OVERRIDE;
   virtual void Work() OVERRIDE;
   virtual bool Respond() OVERRIDE;
 
  private:
   int connection_id_;
-  scoped_refptr<net::IOBufferWithSize> io_buffer_;
+  scoped_refptr<net::IOBuffer> io_buffer_;
+  size_t io_buffer_size_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_API_H_