Print stack traces in child processes when browser tests failed.

mojo/application/public/cpp/lib/application_runner.cc

 // Copyright 2014 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/application/public/cpp/application_runner.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/debug/stack_trace.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
+#include "base/process/launch.h"
 #include "base/threading/worker_pool.h"
 #include "mojo/application/public/cpp/application_delegate.h"
 #include "mojo/application/public/cpp/application_impl.h"
 #include "mojo/message_pump/message_pump_mojo.h"
 
 namespace mojo {
 
 int g_application_runner_argc;
 const char* const* g_application_runner_argv;
 
@@ skipping 17 matching lines @@
 
 MojoResult ApplicationRunner::Run(MojoHandle application_request_handle,
                                   bool init_base) {
   DCHECK(!has_run_);
   has_run_ = true;
 
   scoped_ptr<base::AtExitManager> at_exit;
   if (init_base) {
     InitBaseCommandLine();
     at_exit.reset(new base::AtExitManager);
-#ifndef NDEBUG
+#ifndef OFFICIAL_BUILD
     base::debug::EnableInProcessStackDumping();
+#if defined(OS_WIN)
+    base::RouteStdioToConsole(false);
+#endif
 #endif
   }
 
   {
     scoped_ptr<base::MessageLoop> loop;
     if (message_loop_type_ == base::MessageLoop::TYPE_CUSTOM)
       loop.reset(new base::MessageLoop(common::MessagePumpMojo::Create()));
     else
       loop.reset(new base::MessageLoop(message_loop_type_));
 
@@ skipping 18 matching lines @@
   base::WorkerPool::ShutDownCleanly();
 
   return MOJO_RESULT_OK;
 }
 
 MojoResult ApplicationRunner::Run(MojoHandle application_request_handle) {
   return Run(application_request_handle, true);
 }
 
 }  // namespace mojo