make SetReceiveBufferSize and SetSendBufferSize return net error codes (instead of bools)

chrome/browser/devtools/adb/android_usb_socket.h

 // Copyright (c) 2013 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_DEVTOOLS_ADB_ANDROID_USB_SOCKET_H_
 #define CHROME_BROWSER_DEVTOOLS_ADB_ANDROID_USB_SOCKET_H_
 
 #include <deque>
 
 #include "base/memory/ref_counted.h"
@@ skipping 20 matching lines @@
 
   void HandleIncoming(scoped_refptr<AdbMessage> message);
 
   void Terminated();
 
   // net::StreamSocket implementation.
   virtual int Read(net::IOBuffer* buf, int buf_len,
                    const net::CompletionCallback& callback) OVERRIDE;
   virtual int Write(net::IOBuffer* buf, int buf_len,
                     const net::CompletionCallback& callback) OVERRIDE;
-  virtual bool SetReceiveBufferSize(int32 size) OVERRIDE;
-  virtual bool SetSendBufferSize(int32 size) OVERRIDE;
+  virtual int SetReceiveBufferSize(int32 size) OVERRIDE;
+  virtual int SetSendBufferSize(int32 size) OVERRIDE;
   virtual int Connect(const net::CompletionCallback& callback) OVERRIDE;
   virtual void Disconnect() OVERRIDE;
   virtual bool IsConnected() const OVERRIDE;
   virtual bool IsConnectedAndIdle() const OVERRIDE;
   virtual int GetPeerAddress(net::IPEndPoint* address) const OVERRIDE;
   virtual int GetLocalAddress(net::IPEndPoint* address) const OVERRIDE;
   virtual const net::BoundNetLog& NetLog() const OVERRIDE;
   virtual void SetSubresourceSpeculation() OVERRIDE;
   virtual void SetOmniboxSpeculation() OVERRIDE;
   virtual bool WasEverUsed() const OVERRIDE;
@@ skipping 28 matching lines @@
   bool is_closed_;
   std::string read_buffer_;
   net::CompletionCallback connect_callback_;
   std::deque<IORequest> read_requests_;
   std::deque<IORequest> write_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(AndroidUsbSocket);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_ADB_ANDROID_USB_SOCKET_H_