fileapi: Rename FileSystemMountProvider to FileSystemBackend

The old name is a misnomer as this class no longer provides mount points!
Per some discussion, FileSystemBackend matches what the class is currently
doing and trying to be.

BUG=257016
TEST=none
TBR=hidehiko@chromium.org, joi@chromium.org, kinuko@chromium.org, vandebo@chromium.org
# for one-line #include renames in
chrome/browser/browsing_data/browsing_data_file_system_helper.cc
chrome/browser/extensions/component_loader.cc
chrome/browser/extensions/extension_service.cc

Review URL: https://codereview.chromium.org/18344013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@210480 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 55 insertions, 0 deletions

diff --git a/webkit/browser/fileapi/isolated_file_system_backend.h b/webkit/browser/fileapi/isolated_file_system_backend.h
new file mode 100644
index 0000000..6d869cf
--- /dev/null
+++ b/webkit/browser/fileapi/isolated_file_system_backend.h
@@ -0,0 +1,55 @@
+// 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_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
+#define WEBKIT_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "webkit/browser/fileapi/file_system_backend.h"
+
+namespace fileapi {
+
+class AsyncFileUtilAdapter;
+
+class IsolatedFileSystemBackend : public FileSystemBackend {
+ public:
+  IsolatedFileSystemBackend();
+  virtual ~IsolatedFileSystemBackend();
+
+  // FileSystemBackend implementation.
+  virtual bool CanHandleType(FileSystemType type) const OVERRIDE;
+  virtual void OpenFileSystem(
+      const GURL& origin_url,
+      FileSystemType type,
+      OpenFileSystemMode mode,
+      const OpenFileSystemCallback& callback) OVERRIDE;
+  virtual FileSystemFileUtil* GetFileUtil(FileSystemType type) OVERRIDE;
+  virtual AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) OVERRIDE;
+  virtual CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
+      FileSystemType type,
+      base::PlatformFileError* error_code) OVERRIDE;
+  virtual FileSystemOperation* CreateFileSystemOperation(
+      const FileSystemURL& url,
+      FileSystemContext* context,
+      base::PlatformFileError* error_code) const OVERRIDE;
+  virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader(
+      const FileSystemURL& url,
+      int64 offset,
+      const base::Time& expected_modification_time,
+      FileSystemContext* context) const OVERRIDE;
+  virtual scoped_ptr<FileStreamWriter> CreateFileStreamWriter(
+      const FileSystemURL& url,
+      int64 offset,
+      FileSystemContext* context) const OVERRIDE;
+  virtual FileSystemQuotaUtil* GetQuotaUtil() OVERRIDE;
+
+ private:
+  scoped_ptr<AsyncFileUtilAdapter> isolated_file_util_;
+  scoped_ptr<AsyncFileUtilAdapter> dragged_file_util_;
+  scoped_ptr<AsyncFileUtilAdapter> transient_file_util_;
+};
+
+}  // namespace fileapi
+
+#endif  // WEBKIT_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_