Delete unused features of rtc::FilesystemInterface.

webrtc/base/fileutils.h

Index: webrtc/base/fileutils.h
diff --git a/webrtc/base/fileutils.h b/webrtc/base/fileutils.h
index 23d36b15f47c6257cbaa37ee994c8d65bb503357..9489de8193df95e8cb28de55d5f36f832900e796 100644
--- a/webrtc/base/fileutils.h
+++ b/webrtc/base/fileutils.h
@@ -63,18 +63,6 @@ class DirectoryIterator {
   // returns the name of the file currently pointed to
   virtual std::string Name() const;
 
-  // returns the size of the file currently pointed to
-  virtual size_t FileSize() const;
-
-  // returns true if the file is older than seconds
-  virtual bool OlderThan(int seconds) const;
-
-  // checks whether current file is a special directory file "." or ".."
-  bool IsDots() const {
-    std::string filename(Name());
-    return (filename.compare(".") == 0) || (filename.compare("..") == 0);
-  }
-
  private:
   std::string directory_;
 #if defined(WEBRTC_WIN)
@@ -104,15 +92,6 @@ class FilesystemInterface {
   virtual FileStream *OpenFile(const Pathname &filename,
                                const std::string &mode) = 0;
 
-  // Atomically creates an empty file accessible only to the current user if one
-  // does not already exist at the given path, otherwise fails. This is the only
-  // secure way to create a file in a shared temp directory (e.g., C:\Temp on
-  // Windows or /tmp on Linux).
-  // Note that if it is essential that a file be successfully created then the
-  // app must generate random names and retry on failure, or else it will be
-  // vulnerable to a trivial DoS.
-  virtual bool CreatePrivateFile(const Pathname &filename) = 0;
-
   // This will attempt to delete the path located at filename.
   // It ASSERTS and returns false if the path points to a folder or a
   // non-existent file.
@@ -133,16 +112,6 @@ class FilesystemInterface {
   // the folder itself.
   virtual bool DeleteFolderAndContents(const Pathname& folder);
 
-  // This will delete whatever is located at path, be it a file or a folder.
-  // If it is a folder, it will delete it recursively by calling
-  // DeleteFolderAndContents
-  bool DeleteFileOrFolder(const Pathname &path) {
-    if (IsFolder(path))
-      return DeleteFolderAndContents(path);
-    else
-      return DeleteFile(path);
-  }
-
   // Creates a directory. This will call itself recursively to create /foo/bar
   // even if /foo does not exist. Returns true if the function succeeds.
   virtual bool CreateFolder(const Pathname &pathname) = 0;
@@ -152,41 +121,13 @@ class FilesystemInterface {
   // directory, and returns true if the function succeeds.
   // If the new path is on a different volume than the old path, this function
   // will attempt to copy and, if that succeeds, delete the old path.
-  virtual bool MoveFolder(const Pathname &old_path,
-                          const Pathname &new_path) = 0;
-
-  // This moves a directory from old_path to new_path, where "old_path" is a
-  // directory. This ASSERTs and returns false if old_path points to a plain
-  // file, and returns true if the function succeeds.
-  // If the new path is on a different volume, this function will attempt to
-  // copy and if that succeeds, delete the old path.
   virtual bool MoveFile(const Pathname &old_path, const Pathname &new_path) = 0;
 
-  // This attempts to move whatever is located at old_path to new_path,
-  // be it a file or folder.
-  bool MoveFileOrFolder(const Pathname &old_path, const Pathname &new_path) {
-    if (IsFile(old_path)) {
-      return MoveFile(old_path, new_path);
-    } else {
-      return MoveFolder(old_path, new_path);
-    }
-  }
-
   // This copies a file from old_path to new_path. This method ASSERTs and
   // returns false if old_path is a folder, and returns true if the copy
   // succeeds.
   virtual bool CopyFile(const Pathname &old_path, const Pathname &new_path) = 0;
 
-  // This copies a folder from old_path to new_path.
-  bool CopyFolder(const Pathname &old_path, const Pathname &new_path);
-
-  bool CopyFileOrFolder(const Pathname &old_path, const Pathname &new_path) {
-    if (IsFile(old_path))
-      return CopyFile(old_path, new_path);
-    else
-      return CopyFolder(old_path, new_path);
-  }
-
   // Returns true if pathname refers to a directory
   virtual bool IsFolder(const Pathname& pathname) = 0;
 
@@ -215,11 +156,6 @@ class FilesystemInterface {
   virtual bool GetFileTime(const Pathname& path, FileTimeType which,
                            time_t* time) = 0;
 
-  // Returns the path to the running application.
-  // Note: This is not guaranteed to work on all platforms.  Be aware of the
-  // limitations before using it, and robustly handle failure.
-  virtual bool GetAppPathname(Pathname* path) = 0;
-
   // Get a folder that is unique to the current application, which is suitable
   // for sharing data between executions of the app.  If the per_user arg is
   // true, the folder is also specific to the current user.
@@ -231,14 +167,8 @@ class FilesystemInterface {
   // will be cleaned up when the program exits.
   virtual bool GetAppTempFolder(Pathname* path) = 0;
 
-  // Delete the contents of the folder returned by GetAppTempFolder
-  bool CleanAppTempFolder();
-
   virtual bool GetDiskFreeSpace(const Pathname& path, int64_t* freebytes) = 0;
 
-  // Returns the absolute path of the current directory.
-  virtual Pathname GetCurrentDirectory() = 0;
-
   // Note: These might go into some shared config section later, but they're
   // used by some methods in this interface, so we're leaving them here for now.
   void SetOrganizationName(const std::string& organization) {
@@ -292,18 +222,10 @@ class Filesystem {
     return EnsureDefaultFilesystem()->OpenFile(filename, mode);
   }
 
-  static bool CreatePrivateFile(const Pathname &filename) {
-    return EnsureDefaultFilesystem()->CreatePrivateFile(filename);
-  }
-
   static bool DeleteFile(const Pathname &filename) {
     return EnsureDefaultFilesystem()->DeleteFile(filename);
   }
 
-  static bool DeleteEmptyFolder(const Pathname &folder) {
-    return EnsureDefaultFilesystem()->DeleteEmptyFolder(folder);
-  }
-
   static bool DeleteFolderContents(const Pathname &folder) {
     return EnsureDefaultFilesystem()->DeleteFolderContents(folder);
   }
@@ -312,18 +234,10 @@ class Filesystem {
     return EnsureDefaultFilesystem()->DeleteFolderAndContents(folder);
   }
 
-  static bool MoveFolder(const Pathname &old_path, const Pathname &new_path) {
-    return EnsureDefaultFilesystem()->MoveFolder(old_path, new_path);
-  }
-
   static bool MoveFile(const Pathname &old_path, const Pathname &new_path) {
     return EnsureDefaultFilesystem()->MoveFile(old_path, new_path);
   }
 
-  static bool CopyFolder(const Pathname &old_path, const Pathname &new_path) {
-    return EnsureDefaultFilesystem()->CopyFolder(old_path, new_path);
-  }
-
   static bool CopyFile(const Pathname &old_path, const Pathname &new_path) {
     return EnsureDefaultFilesystem()->CopyFile(old_path, new_path);
   }
@@ -363,10 +277,6 @@ class Filesystem {
     return EnsureDefaultFilesystem()->GetFileTime(path, which, time);
   }
 
-  static bool GetAppPathname(Pathname* path) {
-    return EnsureDefaultFilesystem()->GetAppPathname(path);
-  }
-
   static bool GetAppDataFolder(Pathname* path, bool per_user) {
     return EnsureDefaultFilesystem()->GetAppDataFolder(path, per_user);
   }
@@ -375,18 +285,10 @@ class Filesystem {
     return EnsureDefaultFilesystem()->GetAppTempFolder(path);
   }
 
-  static bool CleanAppTempFolder() {
-    return EnsureDefaultFilesystem()->CleanAppTempFolder();
-  }
-
   static bool GetDiskFreeSpace(const Pathname& path, int64_t* freebytes) {
     return EnsureDefaultFilesystem()->GetDiskFreeSpace(path, freebytes);
   }
 
-  // Definition has to be in the .cc file due to returning forward-declared
-  // Pathname by value.
-  static Pathname GetCurrentDirectory();
-
   static void SetOrganizationName(const std::string& organization) {
     EnsureDefaultFilesystem()->SetOrganizationName(organization);
   }
@@ -423,14 +325,6 @@ class FilesystemScope{
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(FilesystemScope);
 };
 
-// Generates a unique filename based on the input path.  If no path component
-// is specified, it uses the temporary directory.  If a filename is provided,
-// up to 100 variations of form basename-N.extension are tried.  When
-// create_empty is true, an empty file of this name is created (which
-// decreases the chance of a temporary filename collision with another
-// process).
-bool CreateUniqueFile(Pathname& path, bool create_empty);
-
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_FILEUTILS_H_