Mojo: Move mojo/system/embedder to mojo/embedder.

mojo/embedder/embedder.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_SYSTEM_EMBEDDER_EMBEDDER_H_
-#define MOJO_SYSTEM_EMBEDDER_EMBEDDER_H_
+#ifndef MOJO_EMBEDDER_EMBEDDER_H_
+#define MOJO_EMBEDDER_EMBEDDER_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/task_runner.h"
+#include "mojo/embedder/scoped_platform_handle.h"
 #include "mojo/public/system/core.h"
-#include "mojo/system/embedder/scoped_platform_handle.h"
 #include "mojo/system/system_impl_export.h"
 
 namespace mojo {
 namespace embedder {
 
 // Must be called first to initialize the (global, singleton) system.
 MOJO_SYSTEM_IMPL_EXPORT void Init();
 
 // Creates a new "channel", returning a handle to the bootstrap message pipe on
 // that channel. |platform_handle| should be an OS-dependent handle to one side
@@ skipping 23 matching lines @@
     ScopedPlatformHandle platform_handle,
     scoped_refptr<base::TaskRunner> io_thread_task_runner,
     DidCreateChannelOnIOThreadCallback callback);
 
 MOJO_SYSTEM_IMPL_EXPORT void DestroyChannelOnIOThread(
     ChannelInfo* channel_info);
 
 }  // namespace embedder
 }  // namespace mojo
 
-#endif  // MOJO_SYSTEM_EMBEDDER_EMBEDDER_H_
+#endif  // MOJO_EMBEDDER_EMBEDDER_H_