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

mojo/edk/embedder/platform_handle_vector.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_VECTOR_H_
 #define MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_VECTOR_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "mojo/edk/embedder/platform_handle.h"
 #include "mojo/edk/embedder/platform_handle_utils.h"
 #include "mojo/edk/system/system_impl_export.h"
 
 namespace mojo {
-namespace embedder {
+namespace edk {
 
 using PlatformHandleVector = std::vector<PlatformHandle>;
 
 // A deleter (for use with |scoped_ptr|) which closes all handles and then
 // |delete|s the |PlatformHandleVector|.
 struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandleVectorDeleter {
   void operator()(PlatformHandleVector* platform_handles) const {
     CloseAllPlatformHandles(platform_handles);
     delete platform_handles;
   }
 };
 
 using ScopedPlatformHandleVectorPtr =
     scoped_ptr<PlatformHandleVector, PlatformHandleVectorDeleter>;
 
-}  // namespace embedder
+}  // namespace edk
 }  // namespace mojo
 
 #endif  // MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_VECTOR_H_