Move FileAPI sandboxed filesystem related code from webkit/fileapi to webkit/browser/fileapi

webkit/fileapi/obfuscated_file_util.h

Index: webkit/fileapi/obfuscated_file_util.h
diff --git a/webkit/fileapi/obfuscated_file_util.h b/webkit/fileapi/obfuscated_file_util.h
deleted file mode 100644
index ce05f339cfce9284130da6abb9ee2a94aa3204a2..0000000000000000000000000000000000000000
--- a/webkit/fileapi/obfuscated_file_util.h
+++ /dev/null
@@ -1,262 +0,0 @@
-// Copyright (c) 2012 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 WEBKIT_FILEAPI_OBFUSCATED_FILE_UTIL_H_
-#define WEBKIT_FILEAPI_OBFUSCATED_FILE_UTIL_H_
-
-#include <map>
-#include <string>
-
-#include "base/files/file_path.h"
-#include "base/files/file_util_proxy.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/platform_file.h"
-#include "base/timer.h"
-#include "webkit/blob/shareable_file_reference.h"
-#include "webkit/fileapi/file_system_file_util.h"
-#include "webkit/fileapi/file_system_types.h"
-#include "webkit/fileapi/file_system_url.h"
-#include "webkit/fileapi/sandbox_directory_database.h"
-#include "webkit/fileapi/sandbox_origin_database.h"
-#include "webkit/storage/webkit_storage_export.h"
-
-namespace base {
-class Time;
-}
-
-class GURL;
-
-namespace fileapi {
-
-class FileSystemOperationContext;
-
-// The overall implementation philosophy of this class is that partial failures
-// should leave us with an intact database; we'd prefer to leak the occasional
-// backing file than have a database entry whose backing file is missing.  When
-// doing FSCK operations, if you find a loose backing file with no reference,
-// you may safely delete it.
-//
-// This class must be deleted on the FILE thread, because that's where
-// DropDatabases needs to be called.
-class WEBKIT_STORAGE_EXPORT_PRIVATE ObfuscatedFileUtil
-    : public FileSystemFileUtil {
- public:
-  // Origin enumerator interface.
-  // An instance of this interface is assumed to be called on the file thread.
-  class AbstractOriginEnumerator {
-   public:
-    virtual ~AbstractOriginEnumerator() {}
-
-    // Returns the next origin.  Returns empty if there are no more origins.
-    virtual GURL Next() = 0;
-
-    // Returns the current origin's information.
-    virtual bool HasFileSystemType(FileSystemType type) const = 0;
-  };
-
-  explicit ObfuscatedFileUtil(const base::FilePath& file_system_directory);
-  virtual ~ObfuscatedFileUtil();
-
-  // FileSystemFileUtil overrides.
-  virtual base::PlatformFileError CreateOrOpen(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      int file_flags,
-      base::PlatformFile* file_handle,
-      bool* created) OVERRIDE;
-  virtual base::PlatformFileError Close(
-      FileSystemOperationContext* context,
-      base::PlatformFile file) OVERRIDE;
-  virtual base::PlatformFileError EnsureFileExists(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url, bool* created) OVERRIDE;
-  virtual base::PlatformFileError CreateDirectory(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      bool exclusive,
-      bool recursive) OVERRIDE;
-  virtual base::PlatformFileError GetFileInfo(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      base::PlatformFileInfo* file_info,
-      base::FilePath* platform_file) OVERRIDE;
-  virtual scoped_ptr<AbstractFileEnumerator> CreateFileEnumerator(
-      FileSystemOperationContext* context,
-      const FileSystemURL& root_url) OVERRIDE;
-  virtual base::PlatformFileError GetLocalFilePath(
-      FileSystemOperationContext* context,
-      const FileSystemURL& file_system_url,
-      base::FilePath* local_path) OVERRIDE;
-  virtual base::PlatformFileError Touch(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      const base::Time& last_access_time,
-      const base::Time& last_modified_time) OVERRIDE;
-  virtual base::PlatformFileError Truncate(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      int64 length) OVERRIDE;
-  virtual base::PlatformFileError CopyOrMoveFile(
-      FileSystemOperationContext* context,
-      const FileSystemURL& src_url,
-      const FileSystemURL& dest_url,
-      bool copy) OVERRIDE;
-  virtual base::PlatformFileError CopyInForeignFile(
-        FileSystemOperationContext* context,
-        const base::FilePath& src_file_path,
-        const FileSystemURL& dest_url) OVERRIDE;
-  virtual base::PlatformFileError DeleteFile(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url) OVERRIDE;
-  virtual base::PlatformFileError DeleteDirectory(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url) OVERRIDE;
-  virtual webkit_blob::ScopedFile CreateSnapshotFile(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      base::PlatformFileError* error,
-      base::PlatformFileInfo* file_info,
-      base::FilePath* platform_path) OVERRIDE;
-
-  // Same as the other CreateFileEnumerator, but with recursive support.
-  scoped_ptr<AbstractFileEnumerator> CreateFileEnumerator(
-      FileSystemOperationContext* context,
-      const FileSystemURL& root_url,
-      bool recursive);
-
-  // Returns true if the directory |url| is empty.
-  bool IsDirectoryEmpty(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url);
-
-  // Gets the topmost directory specific to this origin and type.  This will
-  // contain both the directory database's files and all the backing file
-  // subdirectories.
-  // Returns an empty path if the directory is undefined (e.g. because |type|
-  // is invalid). If the directory is defined, it will be returned, even if
-  // there is a file system error (e.g. the directory doesn't exist on disk and
-  // |create| is false). Callers should always check |error_code| to make sure
-  // the returned path is usable.
-  base::FilePath GetDirectoryForOriginAndType(
-      const GURL& origin,
-      FileSystemType type,
-      bool create,
-      base::PlatformFileError* error_code);
-
-  // Deletes the topmost directory specific to this origin and type.  This will
-  // delete its directory database.
-  bool DeleteDirectoryForOriginAndType(const GURL& origin, FileSystemType type);
-
-  // TODO(ericu): This doesn't really feel like it belongs in this class.
-  // The previous version lives in FileSystemPathManager, but perhaps
-  // SandboxMountPointProvider would be better?
-  static base::FilePath::StringType GetDirectoryNameForType(
-      FileSystemType type);
-
-  // This method and all methods of its returned class must be called only on
-  // the FILE thread.  The caller is responsible for deleting the returned
-  // object.
-  AbstractOriginEnumerator* CreateOriginEnumerator();
-
-  // Deletes a directory database from the database list in the ObfuscatedFSFU
-  // and destroys the database on the disk.
-  bool DestroyDirectoryDatabase(const GURL& origin, FileSystemType type);
-
-  // Computes a cost for storing a given file in the obfuscated FSFU.
-  // As the cost of a file is independent of the cost of its parent directories,
-  // this ignores all but the BaseName of the supplied path.  In order to
-  // compute the cost of adding a multi-segment directory recursively, call this
-  // on each path segment and add the results.
-  static int64 ComputeFilePathCost(const base::FilePath& path);
-
- private:
-  typedef SandboxDirectoryDatabase::FileId FileId;
-  typedef SandboxDirectoryDatabase::FileInfo FileInfo;
-
-  friend class ObfuscatedFileEnumerator;
-
-  base::PlatformFileError GetFileInfoInternal(
-      SandboxDirectoryDatabase* db,
-      FileSystemOperationContext* context,
-      const GURL& origin,
-      FileSystemType type,
-      FileId file_id,
-      FileInfo* local_info,
-      base::PlatformFileInfo* file_info,
-      base::FilePath* platform_file_path);
-
-  // Creates a new file, both the underlying backing file and the entry in the
-  // database.  |dest_file_info| is an in-out parameter.  Supply the name and
-  // parent_id; data_path is ignored.  On success, data_path will
-  // always be set to the relative path [from the root of the type-specific
-  // filesystem directory] of a NEW backing file, and handle, if supplied, will
-  // hold open PlatformFile for the backing file, which the caller is
-  // responsible for closing.  If you supply a path in |source_path|, it will be
-  // used as a source from which to COPY data.
-  // Caveat: do not supply handle if you're also supplying a data path.  It was
-  // easier not to support this, and no code has needed it so far, so it will
-  // DCHECK and handle will hold base::kInvalidPlatformFileValue.
-  base::PlatformFileError CreateFile(
-      FileSystemOperationContext* context,
-      const base::FilePath& source_file_path,
-      const GURL& dest_origin,
-      FileSystemType dest_type,
-      FileInfo* dest_file_info,
-      int file_flags,
-      base::PlatformFile* handle);
-
-  // This converts from a relative path [as is stored in the FileInfo.data_path
-  // field] to an absolute platform path that can be given to the native
-  // filesystem.
-  base::FilePath DataPathToLocalPath(
-      const GURL& origin,
-      FileSystemType type,
-      const base::FilePath& data_file_path);
-
-  // This returns NULL if |create| flag is false and a filesystem does not
-  // exist for the given |origin_url| and |type|.
-  // For read operations |create| should be false.
-  SandboxDirectoryDatabase* GetDirectoryDatabase(
-      const GURL& origin_url, FileSystemType type, bool create);
-
-  // Gets the topmost directory specific to this origin.  This will
-  // contain both the filesystem type subdirectories.
-  base::FilePath GetDirectoryForOrigin(const GURL& origin,
-                                 bool create,
-                                 base::PlatformFileError* error_code);
-
-  void InvalidateUsageCache(FileSystemOperationContext* context,
-                            const GURL& origin,
-                            FileSystemType type);
-
-  void MarkUsed();
-  void DropDatabases();
-  bool InitOriginDatabase(bool create);
-
-  base::PlatformFileError GenerateNewLocalPath(
-      SandboxDirectoryDatabase* db,
-      FileSystemOperationContext* context,
-      const GURL& origin,
-      FileSystemType type,
-      base::FilePath* local_path);
-
-  base::PlatformFileError CreateOrOpenInternal(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      int file_flags,
-      base::PlatformFile* file_handle,
-      bool* created);
-
-  typedef std::map<std::string, SandboxDirectoryDatabase*> DirectoryMap;
-  DirectoryMap directories_;
-  scoped_ptr<SandboxOriginDatabase> origin_database_;
-  base::FilePath file_system_directory_;
-  base::OneShotTimer<ObfuscatedFileUtil> timer_;
-
-  DISALLOW_COPY_AND_ASSIGN(ObfuscatedFileUtil);
-};
-
-}  // namespace fileapi
-
-#endif  // WEBKIT_FILEAPI_OBFUSCATED_FILE_UTIL_H_