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

mojo/edk/embedder/platform_handle_utils.h

 // 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.
 
 #ifndef MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_UTILS_H_
 #define MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_UTILS_H_
 
 #include "mojo/edk/embedder/platform_handle.h"
 #include "mojo/edk/embedder/scoped_platform_handle.h"
 #include "mojo/edk/system/system_impl_export.h"
 
 namespace mojo {
-namespace embedder {
+namespace edk {
 
 // Closes all the |PlatformHandle|s in the given container.
 template <typename PlatformHandleContainer>
 MOJO_SYSTEM_IMPL_EXPORT inline void CloseAllPlatformHandles(
     PlatformHandleContainer* platform_handles) {
   for (typename PlatformHandleContainer::iterator it =
            platform_handles->begin();
        it != platform_handles->end(); ++it)
     it->CloseIfNecessary();
 }
 
 // Duplicates the given |PlatformHandle| (which must be valid). (Returns an
 // invalid |ScopedPlatformHandle| on failure.)
 MOJO_SYSTEM_IMPL_EXPORT ScopedPlatformHandle
 DuplicatePlatformHandle(PlatformHandle platform_handle);
 
-}  // namespace embedder
+}  // namespace edk
 }  // namespace mojo
 
 #endif  // MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_UTILS_H_