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

mojo/edk/system/memory_unittest.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/edk/system/memory.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <limits>
 
 #include "mojo/public/c/system/macros.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
-namespace system {
+namespace edk {
 namespace {
 
 TEST(MemoryTest, Valid) {
   char my_char;
   int32_t my_int32;
   int64_t my_int64_array[5] = {};  // Zero initialize.
 
   UserPointer<char> my_char_ptr(&my_char);
   UserPointer<int32_t> my_int32_ptr(&my_int32);
   UserPointer<int64_t> my_int64_array_ptr(my_int64_array);
@@ skipping 256 matching lines @@
     UserPointer<const int32_t> ptr(&x);
     EXPECT_DEATH_IF_SUPPORTED(ptr.CheckArray(kTooBig), kMemoryCheckFailedRegex);
     EXPECT_DEATH_IF_SUPPORTED(ptr.GetArray(&x, kTooBig),
                               kMemoryCheckFailedRegex);
   }
 
   // TODO(vtl): Tests for |UserPointer{Reader,Writer,ReaderWriter}|.
 }
 
 }  // namespace
-}  // namespace system
+}  // namespace edk
 }  // namespace mojo