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

mojo/edk/system/handle_table.h

Index: mojo/edk/system/handle_table.h
diff --git a/third_party/mojo/src/mojo/edk/system/handle_table.h b/mojo/edk/system/handle_table.h
similarity index 95%
copy from third_party/mojo/src/mojo/edk/system/handle_table.h
copy to mojo/edk/system/handle_table.h
index 65b81eb9072e75fd04a05a766264b118376ae1fd..de5ac05174be0f32fbe1a0733dde7c2888e4f698 100644
--- a/third_party/mojo/src/mojo/edk/system/handle_table.h
+++ b/mojo/edk/system/handle_table.h
@@ -2,20 +2,20 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef THIRD_PARTY_MOJO_SRC_MOJO_EDK_SYSTEM_HANDLE_TABLE_H_
-#define THIRD_PARTY_MOJO_SRC_MOJO_EDK_SYSTEM_HANDLE_TABLE_H_
+#ifndef MOJO_EDK_SYSTEM_HANDLE_TABLE_H_
+#define MOJO_EDK_SYSTEM_HANDLE_TABLE_H_
 
 #include <utility>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
+#include "mojo/edk/system/system_impl_export.h"
 #include "mojo/public/c/system/types.h"
 #include "mojo/public/cpp/system/macros.h"
-#include "third_party/mojo/src/mojo/edk/system/system_impl_export.h"
 
 namespace mojo {
-namespace system {
+namespace edk {
 
 class Core;
 class Dispatcher;
@@ -138,7 +138,7 @@ class MOJO_SYSTEM_IMPL_EXPORT HandleTable {
   MOJO_DISALLOW_COPY_AND_ASSIGN(HandleTable);
 };
 
-}  // namespace system
+}  // namespace edk
 }  // namespace mojo
 
-#endif  // THIRD_PARTY_MOJO_SRC_MOJO_EDK_SYSTEM_HANDLE_TABLE_H_
+#endif  // MOJO_EDK_SYSTEM_HANDLE_TABLE_H_