Revert of Use a token to initialise ChannelMojo and MojoApplication everywhere.

content/browser/utility_process_host_impl.cc

Index: content/browser/utility_process_host_impl.cc
diff --git a/content/browser/utility_process_host_impl.cc b/content/browser/utility_process_host_impl.cc
index c025a4a6e9dc53b9b7485163832f4fa553b12338..d59249619b34299e4a5e148e28a8cbe4174a5835 100644
--- a/content/browser/utility_process_host_impl.cc
+++ b/content/browser/utility_process_host_impl.cc
@@ -259,6 +259,8 @@
     return false;
   }
 
+  std::string mojo_token = mojo_application_host_->InitWithToken();
+
   if (RenderProcessHost::run_renderer_in_process()) {
     DCHECK(g_utility_main_thread_factory);
     // See comment in RenderProcessHostImpl::Init() for the background on why we
@@ -267,7 +269,7 @@
         g_utility_main_thread_factory(InProcessChildThreadParams(
             channel_id, BrowserThread::UnsafeGetMessageLoopForThread(
                             BrowserThread::IO)->task_runner(),
-            std::string(), mojo_application_host_->GetToken())));
+            mojo::MessagePipeHandle(), mojo_token)));
     in_process_thread_->Start();
   } else {
     const base::CommandLine& browser_command_line =
@@ -346,7 +348,7 @@
 #endif
 
     cmd_line->AppendSwitchASCII(switches::kMojoApplicationChannelToken,
-                                mojo_application_host_->GetToken());
+                                mojo_token);
 
     process_->Launch(
         new UtilitySandboxedProcessLauncherDelegate(exposed_dir_,