This patch caused Chrome to be unable to load any web pages on Chrome OS.

chrome/browser/service/service_process_control.cc

 // Copyright (c) 2011 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/browser/service/service_process_control.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/process_util.h"
 #include "base/stl_util.h"
@@ skipping 29 matching lines @@
     return;
   }
 
   // Actually going to connect.
   VLOG(1) << "Connecting to Service Process IPC Server";
 
   // TODO(hclam): Handle error connecting to channel.
   const IPC::ChannelHandle channel_id = GetServiceProcessChannel();
   channel_.reset(new IPC::ChannelProxy(
       channel_id, IPC::Channel::MODE_NAMED_CLIENT, this,
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO),
-      false /* needs_override_peer_pid */));
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
 }
 
 void ServiceProcessControl::RunConnectDoneTasks() {
   // The tasks executed here may add more tasks to the vector. So copy
   // them to the stack before executing them. This way recursion is
   // avoided.
   TaskList tasks;
   tasks.swap(connect_done_tasks_);
   RunAllTasksHelper(&tasks);
   DCHECK(tasks.empty());
@@ skipping 258 matching lines @@
   if (base::LaunchProcess(*cmd_line_, options, NULL)) {
     BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
                             NewRunnableMethod(this,
                                               &Launcher::DoDetectLaunched));
   } else {
     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                             NewRunnableMethod(this, &Launcher::Notify));
   }
 }
 #endif  // !OS_MACOSX