Revert "Move mojo edk into mojo/edk"

mojo/system/message_pipe_endpoint.h

Index: mojo/system/message_pipe_endpoint.h
diff --git a/mojo/edk/system/message_pipe_endpoint.h b/mojo/system/message_pipe_endpoint.h
similarity index 91%
rename from mojo/edk/system/message_pipe_endpoint.h
rename to mojo/system/message_pipe_endpoint.h
index 7bc0a0d9f4524895fc63358d8495da3473b60829..c8a01fa244dd1c9de36213a554571839320ae192 100644
--- a/mojo/edk/system/message_pipe_endpoint.h
+++ b/mojo/system/message_pipe_endpoint.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 MOJO_EDK_SYSTEM_MESSAGE_PIPE_ENDPOINT_H_
-#define MOJO_EDK_SYSTEM_MESSAGE_PIPE_ENDPOINT_H_
+#ifndef MOJO_SYSTEM_MESSAGE_PIPE_ENDPOINT_H_
+#define MOJO_SYSTEM_MESSAGE_PIPE_ENDPOINT_H_
 
 #include <stdint.h>
 
@@ -12,12 +12,12 @@
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
-#include "mojo/edk/system/dispatcher.h"
-#include "mojo/edk/system/memory.h"
-#include "mojo/edk/system/message_in_transit.h"
-#include "mojo/edk/system/system_impl_export.h"
 #include "mojo/public/c/system/message_pipe.h"
 #include "mojo/public/c/system/types.h"
+#include "mojo/system/dispatcher.h"
+#include "mojo/system/memory.h"
+#include "mojo/system/message_in_transit.h"
+#include "mojo/system/system_impl_export.h"
 
 namespace mojo {
 namespace system {
@@ -86,4 +86,4 @@ class MOJO_SYSTEM_IMPL_EXPORT MessagePipeEndpoint {
 }  // namespace system
 }  // namespace mojo
 
-#endif  // MOJO_EDK_SYSTEM_MESSAGE_PIPE_ENDPOINT_H_
+#endif  // MOJO_SYSTEM_MESSAGE_PIPE_ENDPOINT_H_