Cleanup the Win overlapped reads vs. non-blocking reads by removing the overlapped read code path

chrome/common/chrome_switches.cc

 // 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.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 1535 matching lines @@
 
 #if defined(OS_WIN)
 // For the DelegateExecute verb handler to launch Chrome in metro mode on
 // Windows 8 and higher.  Used when relaunching metro Chrome.
 const char kForceImmersive[]                = "force-immersive";
 
 // For the DelegateExecute verb handler to launch Chrome in desktop mode on
 // Windows 8 and higher.  Used when relaunching metro Chrome.
 const char kForceDesktop[]                  = "force-desktop";
 
-// Allows for disabling the overlapped I/O for TCP reads.
-// Possible values are "on" or "off".
-// The default is "on" which matches the existing behavior.
-// "off" switches to use non-blocking reads and WSAEventSelect.
-const char kOverlappedRead[]                = "overlapped-reads";
-
 // Relaunches metro Chrome on Windows 8 and higher using a given shortcut.
 const char kRelaunchShortcut[]              = "relaunch-shortcut";
 
 // Waits for the given handle to be signaled before relaunching metro Chrome on
 // Windows 8 and higher.
 const char kWaitForMutex[]                  = "wait-for-mutex";
 
 // Indicates that chrome was launched to service a search request in Windows 8.
 const char kWindows8Search[]           = "windows8-search";
 
@@ skipping 29 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches