SyncFS: Introduce SyncFileSystemBackend

webkit/browser/fileapi/sandbox_file_system_backend.h

 // 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_SANDBOX_FILE_SYSTEM_BACKEND_H_
 #define WEBKIT_BROWSER_FILEAPI_SANDBOX_FILE_SYSTEM_BACKEND_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 148 matching lines @@
   void CollectOpenFileSystemMetrics(base::PlatformFileError error_code);
 
   // Performs API-specific validity checks on the given path |url|.
   // Returns true if access to |url| is valid in this filesystem.
   bool IsAccessValid(const FileSystemURL& url) const;
 
   void set_enable_temporary_file_system_in_incognito(bool enable) {
     enable_temporary_file_system_in_incognito_ = enable;
   }
 
+ protected:
+  SandboxContext* sandbox_context() { return sandbox_context_; }
+  void set_sandbox_context(SandboxContext* sandbox_context) {
+    sandbox_context_ = sandbox_context;
+  }
+
+  const UpdateObserverList* update_observers() const {
+    return &update_observers_;
+  }
+  void set_update_observers(const UpdateObserverList& update_observers) {
+    update_observers_ = update_observers;
+  }
+
+  const ChangeObserverList* change_observers() const {
+    return &change_observers_;
+  }
+
+  const AccessObserverList* access_observers() const {
+    return &access_observers_;
+  }
+  void set_access_observers(const AccessObserverList& access_observers) {
+    access_observers_ = access_observers;
+  }
+
  private:
   friend class SandboxQuotaObserver;
   friend class SandboxFileSystemTestHelper;
   friend class SandboxFileSystemBackendMigrationTest;
   friend class SandboxFileSystemBackendOriginEnumeratorTest;
 
   // Returns a path to the usage cache file.
   base::FilePath GetUsageCachePathForOriginAndType(
       const GURL& origin_url,
       FileSystemType type);
@@ skipping 28 matching lines @@
   bool enable_temporary_file_system_in_incognito_;
 
   // Acccessed only on the file thread.
   std::set<GURL> visited_origins_;
 
   // Observers.
   UpdateObserverList update_observers_;
   ChangeObserverList change_observers_;
   AccessObserverList access_observers_;
 
-  // Observers for syncable file systems.
-  UpdateObserverList syncable_update_observers_;
-  ChangeObserverList syncable_change_observers_;
-
   base::Time next_release_time_for_open_filesystem_stat_;
 
   std::set<std::pair<GURL, FileSystemType> > sticky_dirty_origins_;
 
   base::WeakPtrFactory<SandboxFileSystemBackend> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SandboxFileSystemBackend);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_SANDBOX_FILE_SYSTEM_BACKEND_H_