Simulate process launch for in-process utility thread

content/browser/utility_process_host_impl.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/utility_process_host_impl.h"
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ skipping 204 matching lines @@
 
   if (RenderProcessHost::run_renderer_in_process()) {
     DCHECK(g_utility_main_thread_factory);
     // See comment in RenderProcessHostImpl::Init() for the background on why we
     // support single process mode this way.
     in_process_thread_.reset(
         g_utility_main_thread_factory(InProcessChildThreadParams(
             channel_id, BrowserThread::UnsafeGetMessageLoopForThread(
                             BrowserThread::IO)->task_runner())));
     in_process_thread_->Start();
+    OnProcessLaunched();
   } else {
     const base::CommandLine& browser_command_line =
         *base::CommandLine::ForCurrentProcess();
     int child_flags = child_flags_;
 
     bool has_cmd_prefix = browser_command_line.HasSwitch(
         switches::kUtilityCmdPrefix);
 
     // When running under gdb, forking /proc/self/exe ends up forking the gdb
     // executable instead of Chromium. It is almost safe to assume that no
@@ skipping 104 matching lines @@
     if (RenderProcessHost::run_renderer_in_process())
       handle = base::GetCurrentProcessHandle();
     else
       handle = process_->GetData().handle;
 
     mojo_application_host_->Activate(this, handle);
   }
 }
 
 }  // namespace content