Fold //ipc/mojo into //ipc.

ipc/mojo/ipc_mojo_bootstrap.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 IPC_MOJO_IPC_MOJO_BOOTSTRAP_H_
-#define IPC_MOJO_IPC_MOJO_BOOTSTRAP_H_
-
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/macros.h"
-#include "base/process/process_handle.h"
-#include "build/build_config.h"
-#include "ipc/ipc_channel.h"
-#include "ipc/ipc_listener.h"
-#include "ipc/mojo/ipc.mojom.h"
-#include "mojo/public/cpp/system/message_pipe.h"
-
-namespace IPC {
-
-// MojoBootstrap establishes a pair of associated interfaces between two
-// processes in Chrome.
-//
-// Clients should implement MojoBootstrap::Delegate to get the associated pipes
-// from MojoBootstrap object.
-//
-// This lives on IO thread other than Create(), which can be called from
-// UI thread as Channel::Create() can be.
-class IPC_MOJO_EXPORT MojoBootstrap {
- public:
-  class Delegate {
-   public:
-    virtual void OnPipesAvailable(
-        mojom::ChannelAssociatedPtrInfo send_channel,
-        mojom::ChannelAssociatedRequest receive_channel,
-        int32_t peer_pid) = 0;
-    virtual void OnBootstrapError() = 0;
-  };
-
-  // Create the MojoBootstrap instance, using |handle| as the message pipe, in
-  // mode as specified by |mode|. The result is passed to |delegate|.
-  static std::unique_ptr<MojoBootstrap> Create(
-      mojo::ScopedMessagePipeHandle handle,
-      Channel::Mode mode,
-      Delegate* delegate);
-
-  MojoBootstrap();
-  virtual ~MojoBootstrap();
-
-  // Start the handshake over the underlying message pipe.
-  virtual void Connect() = 0;
-
-  // GetSelfPID returns our PID.
-  base::ProcessId GetSelfPID() const;
-
- protected:
-  // On MojoServerBootstrap: INITIALIZED -> WAITING_ACK -> READY
-  // On MojoClientBootstrap: INITIALIZED -> READY
-  // STATE_ERROR is a catch-all state that captures any observed error.
-  enum State { STATE_INITIALIZED, STATE_WAITING_ACK, STATE_READY, STATE_ERROR };
-
-  Delegate* delegate() const { return delegate_; }
-  void Fail();
-  bool HasFailed() const;
-
-  State state() const { return state_; }
-  void set_state(State state) { state_ = state; }
-
-  mojo::ScopedMessagePipeHandle TakeHandle();
-
- private:
-  void Init(mojo::ScopedMessagePipeHandle, Delegate* delegate);
-
-  mojo::ScopedMessagePipeHandle handle_;
-  Delegate* delegate_;
-  State state_;
-
-  DISALLOW_COPY_AND_ASSIGN(MojoBootstrap);
-};
-
-}  // namespace IPC
-
-#endif  // IPC_MOJO_IPC_MOJO_BOOTSTRAP_H_