Prepare chrome to use the new Mojo EDK by default.

mojo/runner/context.cc

 // Copyright 2013 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 "mojo/runner/context.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 269 matching lines @@
 
 void Context::Shutdown() {
   // Actions triggered by ApplicationManager's destructor may require a current
   // message loop, so we should destruct it explicitly now as ~Context() occurs
   // post message loop shutdown.
   application_manager_.reset();
 
   TRACE_EVENT0("mojo_shell", "Context::Shutdown");
   DCHECK_EQ(base::MessageLoop::current()->task_runner(),
             task_runners_->shell_runner());
-  embedder::ShutdownIPCSupport();
+  // Post a task in case OnShutdownComplete is called synchronously.
+  base::MessageLoop::current()->PostTask(
+      FROM_HERE, base::Bind(embedder::ShutdownIPCSupport));
   // We'll quit when we get OnShutdownComplete().
   base::MessageLoop::current()->Run();
 }
 
 void Context::OnShutdownComplete() {
   DCHECK_EQ(base::MessageLoop::current()->task_runner(),
             task_runners_->shell_runner());
   base::MessageLoop::current()->QuitWhenIdle();
 }
 
@@ skipping 40 matching lines @@
         base::MessageLoop::current()->QuitWhenIdle();
       } else {
         app_complete_callback_.Run();
       }
     }
   }
 }
 
 }  // namespace runner
 }  // namespace mojo