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

mojo/edk/embedder/scoped_platform_handle.h

Index: mojo/edk/embedder/scoped_platform_handle.h
diff --git a/third_party/mojo/src/mojo/edk/embedder/scoped_platform_handle.h b/mojo/edk/embedder/scoped_platform_handle.h
similarity index 77%
copy from third_party/mojo/src/mojo/edk/embedder/scoped_platform_handle.h
copy to mojo/edk/embedder/scoped_platform_handle.h
index ed5ce61699a87b15e5b97ff947054958c863396c..ae75202d61961b8760fcecf04bd190e45f6f426b 100644
--- a/third_party/mojo/src/mojo/edk/embedder/scoped_platform_handle.h
+++ b/mojo/edk/embedder/scoped_platform_handle.h
@@ -2,16 +2,16 @@
 // 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_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_
-#define THIRD_PARTY_MOJO_SRC_MOJO_EDK_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_
+#ifndef MOJO_EDK_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_
+#define MOJO_EDK_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_
 
 #include "base/move.h"
+#include "mojo/edk/embedder/platform_handle.h"
+#include "mojo/edk/system/system_impl_export.h"
 #include "mojo/public/c/system/macros.h"
-#include "third_party/mojo/src/mojo/edk/embedder/platform_handle.h"
-#include "third_party/mojo/src/mojo/edk/system/system_impl_export.h"
 
 namespace mojo {
-namespace embedder {
+namespace edk {
 
 class MOJO_SYSTEM_IMPL_EXPORT ScopedPlatformHandle {
   MOVE_ONLY_TYPE_WITH_MOVE_CONSTRUCTOR_FOR_CPP_03(ScopedPlatformHandle)
@@ -56,7 +56,7 @@ class MOJO_SYSTEM_IMPL_EXPORT ScopedPlatformHandle {
   PlatformHandle handle_;
 };
 
-}  // namespace embedder
+}  // namespace edk
 }  // namespace mojo
 
-#endif  // THIRD_PARTY_MOJO_SRC_MOJO_EDK_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_
+#endif  // MOJO_EDK_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_