Revert "Move mojo edk into mojo/edk"

mojo/edk/system/platform_handle_dispatcher.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_PLATFORM_HANDLE_DISPATCHER_H_
-#define MOJO_EDK_SYSTEM_PLATFORM_HANDLE_DISPATCHER_H_
-
-#include "base/macros.h"
-#include "mojo/edk/embedder/scoped_platform_handle.h"
-#include "mojo/edk/system/simple_dispatcher.h"
-#include "mojo/edk/system/system_impl_export.h"
-
-namespace mojo {
-namespace system {
-
-// A dispatcher that simply wraps/transports a |PlatformHandle| (only for use by
-// the embedder).
-class MOJO_SYSTEM_IMPL_EXPORT PlatformHandleDispatcher
-    : public SimpleDispatcher {
- public:
-  explicit PlatformHandleDispatcher(
-      embedder::ScopedPlatformHandle platform_handle);
-
-  embedder::ScopedPlatformHandle PassPlatformHandle();
-
-  // |Dispatcher| public methods:
-  virtual Type GetType() const override;
-
-  // The "opposite" of |SerializeAndClose()|. (Typically this is called by
-  // |Dispatcher::Deserialize()|.)
-  static scoped_refptr<PlatformHandleDispatcher> Deserialize(
-      Channel* channel,
-      const void* source,
-      size_t size,
-      embedder::PlatformHandleVector* platform_handles);
-
- private:
-  virtual ~PlatformHandleDispatcher();
-
-  // |Dispatcher| protected methods:
-  virtual void CloseImplNoLock() override;
-  virtual scoped_refptr<Dispatcher>
-  CreateEquivalentDispatcherAndCloseImplNoLock() override;
-  virtual void StartSerializeImplNoLock(Channel* channel,
-                                        size_t* max_size,
-                                        size_t* max_platform_handles) override;
-  virtual bool EndSerializeAndCloseImplNoLock(
-      Channel* channel,
-      void* destination,
-      size_t* actual_size,
-      embedder::PlatformHandleVector* platform_handles) override;
-
-  embedder::ScopedPlatformHandle platform_handle_;
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformHandleDispatcher);
-};
-
-}  // namespace system
-}  // namespace mojo
-
-#endif  // MOJO_EDK_SYSTEM_PLATFORM_HANDLE_DISPATCHER_H_