Get rid of --start-renderers-manually since it's been broken for a long time ...

chrome/common/chrome_switches.cc

 // Copyright (c) 2006-2008 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"
 
 namespace switches {
 
@@ skipping 45 matching lines @@
 
 // The value of this switch tells the app to listen for and broadcast
 // testing-related messages on IPC channel with the given ID.
 const wchar_t kTestingChannelID[]              = L"testing-channel";
 
 // The value of this switch specifies which page will be displayed
 // in newly-opened tabs.  We need this for testing purposes so
 // that the UI tests don't depend on what comes up for http://google.com.
 const wchar_t kHomePage[]                      = L"homepage";
 
-// When this switch is present, the browser will throw up a dialog box
-// asking the user to start a renderer process independently rather
-// than launching the renderer itself.  (This is useful for debugging.)
-const wchar_t kBrowserStartRenderersManually[] = L"start-renderers-manually";
-
 // Causes the process to run as renderer instead of as browser.
 const wchar_t kRendererProcess[]               = L"renderer";
 
 // Path to the exe to run for the renderer subprocess
 const wchar_t kRendererPath[]                  = L"renderer-path";
 
 // Causes the process to run as a plugin subprocess.
 const wchar_t kPluginProcess[]                 = L"plugin";
 
 // Causes the process to run as a worker subprocess.
@@ skipping 321 matching lines @@
 
 // On POSIX only: use FIFO for IPC channels so that "unrelated" process
 // can connect to a channel, provided it knows its name. For debugging purposes.
 const wchar_t kIPCUseFIFO[]                    = L"ipc-use-fifo";
 
 // If this flag is set open out of process developer tools window instead of
 // Console Debugger when user clicks "Debug JavaScript".
 const wchar_t kEnableOutOfProcessDevTools[]    = L"enable-oop-devtools";
 
 }  // namespace switches