Move //mojo/services/X/public/... to //mojo/services/X/... (part 1).

mojo/services/files/public/cpp/output_stream_file.h

-// Copyright 2015 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.
-
-// This is a helper class for implementing a |mojo::files::File| that behaves
-// like an "output stream" ("output" from the point of view of the client --
-// i.e., the client can write/stream output to it, but not read or seek).
-
-#ifndef MOJO_SERVICES_FILES_PUBLIC_CPP_OUTPUT_STREAM_FILE_H_
-#define MOJO_SERVICES_FILES_PUBLIC_CPP_OUTPUT_STREAM_FILE_H_
-
-#include <stddef.h>
-
-#include <memory>
-
-#include "mojo/public/cpp/bindings/binding.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/system/macros.h"
-#include "mojo/services/files/public/interfaces/file.mojom.h"
-#include "mojo/services/files/public/interfaces/types.mojom.h"
-
-namespace files_impl {
-
-class OutputStreamFile : public mojo::files::File {
- public:
-  // The |Client| receives data written to the stream "file" as well as other
-  // notifications (e.g., of the "file" being closed). From any of the methods
-  // below, the client may choose to destroy the |OutputStreamFile|.
-  class Client {
-   public:
-    // Called when we receive data from the stream "file".
-    // TODO(vtl): Maybe add a way to throttle (e.g., for the client to not
-    // accept all the data).
-    virtual void OnDataReceived(const void* bytes, size_t num_bytes) = 0;
-
-    // Called when the stream "file" is closed, via |Close()| or due to the
-    // other end of the message pipe being closed. (This will not be called due
-    // the |OutputStreamFile| being destroyed.)
-    virtual void OnClosed() = 0;
-
-   protected:
-    virtual ~Client() {}
-  };
-
-  // Static factory method. |client| may be null, but if not it should typically
-  // outlive us (see |set_client()|).
-  static std::unique_ptr<OutputStreamFile> Create(
-      Client* client,
-      mojo::InterfaceRequest<mojo::files::File> request);
-
-  ~OutputStreamFile() override;
-
-  // Sets the client (which may be null, in which case all |Write()|s to the
-  // stream "file" will just succeed). If non-null, |client| must be valid
-  // whenever the run (a.k.a. message) loop is run, i.e., whenever a client
-  // method may be called.
-  void set_client(Client* client) { client_ = client; }
-
- private:
-  OutputStreamFile(Client* client,
-                   mojo::InterfaceRequest<mojo::files::File> request);
-
-  // We should only be deleted by "ourself" (via the strong binding).
-  friend class mojo::Binding<mojo::files::File>;
-
-  // |mojo::files::File| implementation:
-  void Close(const CloseCallback& callback) override;
-  void Read(uint32_t num_bytes_to_read,
-            int64_t offset,
-            mojo::files::Whence whence,
-            const ReadCallback& callback) override;
-  void Write(mojo::Array<uint8_t> bytes_to_write,
-             int64_t offset,
-             mojo::files::Whence whence,
-             const WriteCallback& callback) override;
-  void ReadToStream(mojo::ScopedDataPipeProducerHandle source,
-                    int64_t offset,
-                    mojo::files::Whence whence,
-                    int64_t num_bytes_to_read,
-                    const ReadToStreamCallback& callback) override;
-  void WriteFromStream(mojo::ScopedDataPipeConsumerHandle sink,
-                       int64_t offset,
-                       mojo::files::Whence whence,
-                       const WriteFromStreamCallback& callback) override;
-  void Tell(const TellCallback& callback) override;
-  void Seek(int64_t offset,
-            mojo::files::Whence whence,
-            const SeekCallback& callback) override;
-  void Stat(const StatCallback& callback) override;
-  void Truncate(int64_t size, const TruncateCallback& callback) override;
-  void Touch(mojo::files::TimespecOrNowPtr atime,
-             mojo::files::TimespecOrNowPtr mtime,
-             const TouchCallback& callback) override;
-  void Dup(mojo::InterfaceRequest<mojo::files::File> file,
-           const DupCallback& callback) override;
-  void Reopen(mojo::InterfaceRequest<mojo::files::File> file,
-              uint32_t open_flags,
-              const ReopenCallback& callback) override;
-  void AsBuffer(const AsBufferCallback& callback) override;
-  void Ioctl(uint32_t request,
-             mojo::Array<uint32_t> in_values,
-             const IoctlCallback& callback) override;
-
-  Client* client_;
-  bool is_closed_;
-
-  mojo::Binding<mojo::files::File> binding_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(OutputStreamFile);
-};
-
-}  // namespace files_impl
-
-#endif  // MOJO_SERVICES_FILES_PUBLIC_CPP_OUTPUT_STREAM_FILE_H_