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

mojo/edk/system/message_in_transit_queue_unittest.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 "third_party/mojo/src/mojo/edk/system/message_in_transit_queue.h"
+#include "mojo/edk/system/message_in_transit_queue.h"
 
-#include "third_party/mojo/src/mojo/edk/system/message_in_transit_test_utils.h"
+#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(MessageInTransitQueueTest, Basic) {
   MessageInTransitQueue queue;
   EXPECT_TRUE(queue.IsEmpty());
 
   queue.AddMessage(test::MakeTestMessage(1));
   ASSERT_FALSE(queue.IsEmpty());
   EXPECT_EQ(1u, queue.Size());
 
@@ skipping 58 matching lines @@
   queue1.Swap(&queue2);
   EXPECT_TRUE(queue2.IsEmpty());
 
   test::VerifyTestMessage(queue1.GetMessage().get(), 1);
   test::VerifyTestMessage(queue1.GetMessage().get(), 2);
   test::VerifyTestMessage(queue1.GetMessage().get(), 3);
   EXPECT_TRUE(queue1.IsEmpty());
 }
 
 }  // namespace
-}  // namespace system
+}  // namespace edk
 }  // namespace mojo