Revert "Move mojo edk into mojo/edk"

mojo/system/handle_table.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_SYSTEM_HANDLE_TABLE_H_
-#define MOJO_EDK_SYSTEM_HANDLE_TABLE_H_
+#ifndef MOJO_SYSTEM_HANDLE_TABLE_H_
+#define MOJO_SYSTEM_HANDLE_TABLE_H_
 
 #include <utility>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "mojo/edk/system/system_impl_export.h"
 #include "mojo/public/c/system/types.h"
+#include "mojo/system/system_impl_export.h"
 
 namespace mojo {
 namespace system {
 
 class Core;
 class Dispatcher;
 class DispatcherTransport;
 
 typedef std::vector<scoped_refptr<Dispatcher>> DispatcherVector;
 
@@ skipping 108 matching lines @@
 
   HandleToEntryMap handle_to_entry_map_;
   MojoHandle next_handle_;  // Invariant: never |MOJO_HANDLE_INVALID|.
 
   DISALLOW_COPY_AND_ASSIGN(HandleTable);
 };
 
 }  // namespace system
 }  // namespace mojo
 
-#endif  // MOJO_EDK_SYSTEM_HANDLE_TABLE_H_
+#endif  // MOJO_SYSTEM_HANDLE_TABLE_H_