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

mojo/edk/embedder/platform_channel_utils_posix.h

Index: mojo/edk/embedder/platform_channel_utils_posix.h
diff --git a/third_party/mojo/src/mojo/edk/embedder/platform_channel_utils_posix.h b/mojo/edk/embedder/platform_channel_utils_posix.h
similarity index 88%
copy from third_party/mojo/src/mojo/edk/embedder/platform_channel_utils_posix.h
copy to mojo/edk/embedder/platform_channel_utils_posix.h
index 5ec524aae1bad557a4b562e085b4ff0ec9e8dbdb..00e6a16c6334c988f2fc019f67e6008547f3babf 100644
--- a/third_party/mojo/src/mojo/edk/embedder/platform_channel_utils_posix.h
+++ b/mojo/edk/embedder/platform_channel_utils_posix.h
@@ -2,8 +2,8 @@
 // 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_PLATFORM_CHANNEL_UTILS_POSIX_H_
-#define THIRD_PARTY_MOJO_SRC_MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_
+#ifndef MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_
+#define MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_
 
 #include <stddef.h>
 #include <sys/types.h>  // For |ssize_t|.
@@ -11,13 +11,13 @@
 #include <deque>
 
 #include "base/memory/scoped_ptr.h"
-#include "third_party/mojo/src/mojo/edk/embedder/platform_handle.h"
-#include "third_party/mojo/src/mojo/edk/system/system_impl_export.h"
+#include "mojo/edk/embedder/platform_handle.h"
+#include "mojo/edk/system/system_impl_export.h"
 
 struct iovec;  // Declared in <sys/uio.h>.
 
 namespace mojo {
-namespace embedder {
+namespace edk {
 
 // The maximum number of handles that can be sent "at once" using
 // |PlatformChannelSendmsgWithHandles()|.
@@ -70,7 +70,7 @@ PlatformChannelRecvmsg(PlatformHandle h,
                        size_t num_bytes,
                        std::deque<PlatformHandle>* platform_handles);
 
-}  // namespace embedder
+}  // namespace edk
 }  // namespace mojo
 
-#endif  // THIRD_PARTY_MOJO_SRC_MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_
+#endif  // MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_