Remove the code to wait on disconnected child processes to get the exit code. This was done in r101…

content/browser/gpu/gpu_process_host.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 "content/browser/gpu/gpu_process_host.h"
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ skipping 217 matching lines @@
   GpuChildThread* child_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMainThread);
 };
 
 // static
 bool GpuProcessHost::HostIsValid(GpuProcessHost* host) {
   if (!host)
     return false;
 
-  // Check if the GPU process has died and the host is about to be destroyed.
-  if (host->process_->disconnect_was_alive())
-    return false;
-
   // The Gpu process is invalid if it's not using software, the card is
   // blacklisted, and we can kill it and start over.
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess) ||
       CommandLine::ForCurrentProcess()->HasSwitch(switches::kInProcessGPU) ||
       host->software_rendering() ||
       !GpuDataManagerImpl::GetInstance()->ShouldUseSoftwareRendering()) {
     return true;
   }
 
   host->ForceShutdown();
@@ skipping 609 matching lines @@
     const IPC::ChannelHandle& channel_handle,
     base::ProcessHandle renderer_process_for_gpu,
     const content::GPUInfo& gpu_info) {
   callback.Run(channel_handle, gpu_info);
 }
 
 void GpuProcessHost::CreateCommandBufferError(
     const CreateCommandBufferCallback& callback, int32 route_id) {
   callback.Run(route_id);
 }