Fold //ipc/mojo into //ipc.

ipc/mojo/ipc_channel_mojo.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_IPC_CHANNEL_MOJO_H_
-#define IPC_IPC_CHANNEL_MOJO_H_
-
-#include <stdint.h>
-
-#include <memory>
-#include <vector>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_vector.h"
-#include "base/memory/weak_ptr.h"
-#include "base/synchronization/lock.h"
-#include "base/task_runner.h"
-#include "build/build_config.h"
-#include "ipc/ipc_channel.h"
-#include "ipc/ipc_channel_factory.h"
-#include "ipc/ipc_export.h"
-#include "ipc/mojo/ipc_message_pipe_reader.h"
-#include "ipc/mojo/ipc_mojo_bootstrap.h"
-#include "mojo/public/cpp/system/core.h"
-
-namespace IPC {
-
-// Mojo-based IPC::Channel implementation over a Mojo message pipe.
-//
-// ChannelMojo builds a Mojo MessagePipe using the provided message pipe
-// |handle| and builds an associated interface for each direction on the
-// channel.
-//
-// TODO(morrita): Add APIs to create extra MessagePipes to let
-//                Mojo-based objects talk over this Channel.
-//
-class IPC_MOJO_EXPORT ChannelMojo
-    : public Channel,
-      public MojoBootstrap::Delegate,
-      public NON_EXPORTED_BASE(internal::MessagePipeReader::Delegate) {
- public:
-  // Creates a ChannelMojo.
-  static std::unique_ptr<ChannelMojo>
-  Create(mojo::ScopedMessagePipeHandle handle, Mode mode, Listener* listener);
-
-  // Create a factory object for ChannelMojo.
-  // The factory is used to create Mojo-based ChannelProxy family.
-  // |host| must not be null.
-  static std::unique_ptr<ChannelFactory> CreateServerFactory(
-      mojo::ScopedMessagePipeHandle handle);
-
-  static std::unique_ptr<ChannelFactory> CreateClientFactory(
-      mojo::ScopedMessagePipeHandle handle);
-
-  ~ChannelMojo() override;
-
-  // Channel implementation
-  bool Connect() override;
-  void Close() override;
-  bool Send(Message* message) override;
-  bool IsSendThreadSafe() const override;
-  base::ProcessId GetPeerPID() const override;
-  base::ProcessId GetSelfPID() const override;
-
-#if defined(OS_POSIX) && !defined(OS_NACL_SFI)
-  int GetClientFileDescriptor() const override;
-  base::ScopedFD TakeClientFileDescriptor() override;
-#endif  // defined(OS_POSIX) && !defined(OS_NACL_SFI)
-
-  // These access protected API of IPC::Message, which has ChannelMojo
-  // as a friend class.
-  static MojoResult WriteToMessageAttachmentSet(
-      mojo::Array<mojom::SerializedHandlePtr> handle_buffer,
-      Message* message);
-  static MojoResult ReadFromMessageAttachmentSet(
-      Message* message,
-      mojo::Array<mojom::SerializedHandlePtr>* handles);
-
-  // MojoBootstrapDelegate implementation
-  void OnPipesAvailable(mojom::ChannelAssociatedPtrInfo send_channel,
-                        mojom::ChannelAssociatedRequest receive_channel,
-                        int32_t peer_pid) override;
-  void OnBootstrapError() override;
-
-  // MessagePipeReader::Delegate
-  void OnMessageReceived(const Message& message) override;
-  void OnPipeError() override;
-
- private:
-  ChannelMojo(mojo::ScopedMessagePipeHandle handle,
-              Mode mode,
-              Listener* listener);
-
-  void InitMessageReader(mojom::ChannelAssociatedPtrInfo sender,
-                         mojom::ChannelAssociatedRequest receiver,
-                         base::ProcessId peer_pid);
-
-  // ChannelMojo needs to kill its MessagePipeReader in delayed manner
-  // because the channel wants to kill these readers during the
-  // notifications invoked by them.
-  typedef internal::MessagePipeReader::DelayedDeleter ReaderDeleter;
-
-  // A TaskRunner which runs tasks on the ChannelMojo's owning thread.
-  scoped_refptr<base::TaskRunner> task_runner_;
-
-  const mojo::MessagePipeHandle pipe_;
-  std::unique_ptr<MojoBootstrap> bootstrap_;
-  Listener* listener_;
-
-  // Guards access to the fields below.
-  mutable base::Lock lock_;
-  std::unique_ptr<internal::MessagePipeReader, ReaderDeleter> message_reader_;
-  std::vector<std::unique_ptr<Message>> pending_messages_;
-  bool waiting_connect_;
-
-  base::WeakPtrFactory<ChannelMojo> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ChannelMojo);
-};
-
-}  // namespace IPC
-
-#endif  // IPC_IPC_CHANNEL_MOJO_H_