Privatize StrongBinding lifetime management

components/filesystem/directory_impl.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.
 
 #ifndef COMPONENTS_FILESYSTEM_DIRECTORY_IMPL_H_
 #define COMPONENTS_FILESYSTEM_DIRECTORY_IMPL_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/files/file_path.h"
 #include "base/files/scoped_file.h"
 #include "base/macros.h"
 #include "components/filesystem/public/interfaces/directory.mojom.h"
 #include "components/filesystem/shared_temp_dir.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace filesystem {
 
 class LockTable;
 
 class DirectoryImpl : public mojom::Directory {
  public:
   // Set |temp_dir| only if there's a temporary directory that should be deleted
   // when this object is destroyed.
-  DirectoryImpl(mojo::InterfaceRequest<mojom::Directory> request,
-                base::FilePath directory_path,
+  DirectoryImpl(base::FilePath directory_path,
                 scoped_refptr<SharedTempDir> temp_dir,
                 scoped_refptr<LockTable> lock_table);
   ~DirectoryImpl() override;
 
-  void set_connection_error_handler(const base::Closure& error_handler) {
-    binding_.set_connection_error_handler(error_handler);
-  }
-
   // |Directory| implementation:
   void Read(const ReadCallback& callback) override;
   void OpenFile(const mojo::String& path,
-                mojo::InterfaceRequest<mojom::File> file,
+                mojom::FileRequest file,
                 uint32_t open_flags,
                 const OpenFileCallback& callback) override;
   void OpenFileHandle(const mojo::String& path,
                       uint32_t open_flags,
                       const OpenFileHandleCallback& callback) override;
   void OpenFileHandles(mojo::Array<mojom::FileOpenDetailsPtr> details,
                        const OpenFileHandlesCallback& callback) override;
   void OpenDirectory(const mojo::String& path,
-                     mojo::InterfaceRequest<mojom::Directory> directory,
+                     mojom::DirectoryRequest directory,
                      uint32_t open_flags,
                      const OpenDirectoryCallback& callback) override;
   void Rename(const mojo::String& path,
               const mojo::String& new_path,
               const RenameCallback& callback) override;
   void Delete(const mojo::String& path,
               uint32_t delete_flags,
               const DeleteCallback& callback) override;
   void Exists(const mojo::String& path,
               const ExistsCallback& callback) override;
   void IsWritable(const mojo::String& path,
                   const IsWritableCallback& callback) override;
   void Flush(const FlushCallback& callback) override;
   void StatFile(const mojo::String& path,
                 const StatFileCallback& callback) override;
-  void Clone(mojo::InterfaceRequest<mojom::Directory> directory) override;
+  void Clone(mojom::DirectoryRequest directory) override;
   void ReadEntireFile(const mojo::String& path,
                       const ReadEntireFileCallback& callback) override;
   void WriteFile(const mojo::String& path,
                  mojo::Array<uint8_t> data,
                  const WriteFileCallback& callback) override;
 
  private:
   mojo::ScopedHandle OpenFileHandleImpl(const mojo::String& raw_path,
                                         uint32_t open_flags,
                                         mojom::FileError* error);
 
-  mojo::StrongBinding<mojom::Directory> binding_;
   base::FilePath directory_path_;
   scoped_refptr<SharedTempDir> temp_dir_;
   scoped_refptr<LockTable> lock_table_;
 
   DISALLOW_COPY_AND_ASSIGN(DirectoryImpl);
 };
 
 }  // namespace filesystem
 
 #endif  // COMPONENTS_FILESYSTEM_DIRECTORY_IMPL_H_