[mojo-edk] Bind a child token to child launches and port reservations.

mojo/edk/test/multiprocess_test_helper.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/edk/test/multiprocess_test_helper.h"
 
 #include <functional>
 #include <set>
 #include <utility>
 
@@ skipping 98 matching lines @@
 #elif defined(OS_WIN)
   options.start_hidden = true;
   if (base::win::GetVersion() >= base::win::VERSION_VISTA)
     options.handles_to_inherit = &handle_passing_info;
   else
     options.inherit_handles = true;
 #else
 #error "Not supported yet."
 #endif
 
-  ScopedMessagePipeHandle pipe = CreateParentMessagePipe(pipe_token);
+  std::string child_token = mojo::edk::GenerateRandomToken();
+  ScopedMessagePipeHandle pipe = CreateParentMessagePipe(pipe_token,
+                                                         child_token);
 
   test_child_ =
       base::SpawnMultiProcessTestChild(test_child_main, command_line, options);
   channel.ChildProcessLaunched();
 
-  ChildProcessLaunched(test_child_.Handle(), channel.PassServerHandle());
+  ChildProcessLaunched(test_child_.Handle(), channel.PassServerHandle(),
+                       child_token);
   CHECK(test_child_.IsValid());
 
   return pipe;
 }
 
 int MultiprocessTestHelper::WaitForChildShutdown() {
   CHECK(test_child_.IsValid());
 
   int rv = -1;
 #if defined(OS_ANDROID)
@@ skipping 46 matching lines @@
             ::testing::Test::HasNonfatalFailure()) ? 1 : 0;
   });
 }
 
 // static
 std::string MultiprocessTestHelper::primordial_pipe_token;
 
 }  // namespace test
 }  // namespace edk
 }  // namespace mojo