mandoline sandbox: prewarm libraries before we raise the sandbox.

mojo/runner/shell_test_main.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 "base/at_exit.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/test/launcher/unit_test_launcher.h"
 #include "base/test/test_suite.h"
 #include "mojo/runner/child_process.h"
+#include "mojo/runner/native_application_support.h"
 #include "mojo/runner/switches.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 int main(int argc, char** argv) {
   base::CommandLine::Init(argc, argv);
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
 
   if (command_line.HasSwitch(switches::kChildProcess)) {
     base::AtExitManager at_exit;
+    mojo::shell::NativeApplicationCleanup cleanup =
+        command_line.HasSwitch(switches::kDeleteAfterLoad)
+            ? mojo::shell::NativeApplicationCleanup::DELETE
+            : mojo::shell::NativeApplicationCleanup::DONT_DELETE;
+    base::NativeLibrary app_library = mojo::runner::LoadNativeApplication(
+        command_line.GetSwitchValuePath(switches::kChildProcess), cleanup);
 
-    return mojo::runner::ChildProcessMain();
+    return mojo::runner::ChildProcessMain(app_library);
   }
 
   base::TestSuite test_suite(argc, argv);
   return base::LaunchUnitTests(
       argc, argv,
       base::Bind(&base::TestSuite::Run, base::Unretained(&test_suite)));
 }