Remove remote tree host and some related input and metro_driver code

win8/metro_driver/file_picker_ash.h

-// Copyright (c) 2013 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 CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_ASH_H_
-#define CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_ASH_H_
-
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/files/file_path.h"
-#include "base/macros.h"
-#include "base/strings/string16.h"
-
-class ChromeAppViewAsh;
-struct MetroViewerHostMsg_SaveAsDialogParams;
-
-namespace base {
-class FilePath;
-}
-
-// Base class for the file pickers.
-class FilePickerSessionBase {
- public:
-  virtual ~FilePickerSessionBase();
-
-  // Runs the picker, returns true on success.
-  bool Run();
-
-  const base::string16& result() const { return result_; }
-
-  bool success() const { return success_; }
-
- protected:
-  // Creates a file picker for open_file_name.
-  FilePickerSessionBase(ChromeAppViewAsh* app_view,
-                        const base::string16& title,
-                        const base::string16& filter,
-                        const base::FilePath& default_path);
-
-  // Creates, configures and starts a file picker.
-  // If the HRESULT returned is a failure code the file picker has not started,
-  // so no callbacks should be expected.
-  virtual HRESULT StartFilePicker() = 0;
-
-  // True iff a file picker has successfully finished.
-  bool success_;
-
-  // The title of the file picker.
-  base::string16 title_;
-
-  // The file type filter.
-  base::string16 filter_;
-
-  // The starting directory/file name.
-  base::FilePath default_path_;
-
-  // Pointer to the ChromeAppViewAsh instance. We notify the ChromeAppViewAsh
-  // instance when the file open/save operations complete.
-  ChromeAppViewAsh* app_view_;
-
-  base::string16 result_;
-
- private:
-  // Initiate a file picker, must be called on the main metro thread.
-  // Returns true on success.
-  bool DoFilePicker();
-
-  DISALLOW_COPY_AND_ASSIGN(FilePickerSessionBase);
-};
-
-// Provides functionality to display the open file/multiple open file pickers
-// metro dialog.
-class OpenFilePickerSession : public FilePickerSessionBase {
- public:
-  OpenFilePickerSession(ChromeAppViewAsh* app_view,
-                        const base::string16& title,
-                        const base::string16& filter,
-                        const base::FilePath& default_path,
-                        bool allow_multi_select);
-  ~OpenFilePickerSession() override;
-
-  const std::vector<base::FilePath>& filenames() const {
-    return filenames_;
-  }
-
-  bool allow_multi_select() const { return allow_multi_select_; }
-
- private:
-  HRESULT StartFilePicker() override;
-
-  typedef winfoundtn::IAsyncOperation<winstorage::StorageFile*>
-      SingleFileAsyncOp;
-  typedef winfoundtn::Collections::IVectorView<
-      winstorage::StorageFile*> StorageFileVectorCollection;
-  typedef winfoundtn::IAsyncOperation<StorageFileVectorCollection*>
-      MultiFileAsyncOp;
-
-  // Called asynchronously when a single file picker is done.
-  HRESULT SinglePickerDone(SingleFileAsyncOp* async, AsyncStatus status);
-
-  // Called asynchronously when a multi file picker is done.
-  HRESULT MultiPickerDone(MultiFileAsyncOp* async, AsyncStatus status);
-
-  // Composes a multi-file result string suitable for returning to a
-  // from a storage file collection.
-  static HRESULT ComposeMultiFileResult(StorageFileVectorCollection* files,
-                                        base::string16* result);
-
-  // True if the multi file picker is to be displayed.
-  bool allow_multi_select_;
-  // If multi select is true then this member contains the list of filenames
-  // to be returned back.
-  std::vector<base::FilePath> filenames_;
-
-  DISALLOW_COPY_AND_ASSIGN(OpenFilePickerSession);
-};
-
-// Provides functionality to display the save file picker.
-class SaveFilePickerSession : public FilePickerSessionBase {
- public:
-  SaveFilePickerSession(ChromeAppViewAsh* app_view,
-                        const MetroViewerHostMsg_SaveAsDialogParams& params);
-
-  int filter_index() const;
-
- private:
-  HRESULT StartFilePicker() override;
-
-  typedef winfoundtn::IAsyncOperation<winstorage::StorageFile*> SaveFileAsyncOp;
-
-  // Called asynchronously when the save file picker is done.
-  HRESULT FilePickerDone(SaveFileAsyncOp* async, AsyncStatus status);
-
-  int filter_index_;
-
-  DISALLOW_COPY_AND_ASSIGN(SaveFilePickerSession);
-};
-
-// Provides functionality to display the folder picker.
-class FolderPickerSession : public FilePickerSessionBase {
- public:
-  FolderPickerSession(ChromeAppViewAsh* app_view, const base::string16& title);
-
- private:
-  HRESULT StartFilePicker() override;
-
-  typedef winfoundtn::IAsyncOperation<winstorage::StorageFolder*>
-      FolderPickerAsyncOp;
-
-  // Called asynchronously when the folder picker is done.
-  HRESULT FolderPickerDone(FolderPickerAsyncOp* async, AsyncStatus status);
-
-  DISALLOW_COPY_AND_ASSIGN(FolderPickerSession);
-};
-
-#endif  // CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_ASH_H_
-