Add a Mojo EDK for Chrome that uses one OS pipe per message pipe.

mojo/edk/system/message_in_transit_test_utils.cc

 // Copyright 2015 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/system/message_in_transit_test_utils.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
-namespace system {
+namespace edk {
 namespace test {
 
 scoped_ptr<MessageInTransit> MakeTestMessage(unsigned id) {
   return make_scoped_ptr(
       new MessageInTransit(MessageInTransit::Type::ENDPOINT_CLIENT,
                            MessageInTransit::Subtype::ENDPOINT_CLIENT_DATA,
                            static_cast<uint32_t>(sizeof(id)), &id));
 }
 
 void VerifyTestMessage(const MessageInTransit* message, unsigned id) {
   ASSERT_TRUE(message);
   EXPECT_EQ(MessageInTransit::Type::ENDPOINT_CLIENT, message->type());
   EXPECT_EQ(MessageInTransit::Subtype::ENDPOINT_CLIENT_DATA,
             message->subtype());
   EXPECT_EQ(sizeof(id), message->num_bytes());
   EXPECT_EQ(id, *static_cast<const unsigned*>(message->bytes()));
 }
 
 bool IsTestMessage(MessageInTransit* message, unsigned* id) {
   if (message->type() != MessageInTransit::Type::ENDPOINT_CLIENT ||
       message->subtype() != MessageInTransit::Subtype::ENDPOINT_CLIENT_DATA ||
       message->num_bytes() != sizeof(*id))
     return false;
 
   *id = *static_cast<const unsigned*>(message->bytes());
   return true;
 }
 
 }  // namespace test
-}  // namespace system
+}  // namespace edk
 }  // namespace mojo