FileAPI: Add FileObserver related interfaces into FileSystemQuotaUtil

webkit/browser/fileapi/file_system_quota_util.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_FILE_SYSTEM_QUOTA_UTIL_H_
 #define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_QUOTA_UTIL_H_
 
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/platform_file.h"
 #include "url/gurl.h"
+#include "webkit/browser/fileapi/task_runner_bound_observer_list.h"
 #include "webkit/browser/webkit_storage_browser_export.h"
 #include "webkit/common/fileapi/file_system_types.h"
 
 namespace base {
 class SequencedTaskRunner;
 }
 
 namespace quota {
 class QuotaManagerProxy;
 }
@@ skipping 28 matching lines @@
   // Returns the amount of data used for the origin for usage tracking.
   virtual int64 GetOriginUsageOnFileThread(
       fileapi::FileSystemContext* file_system_context,
       const GURL& origin_url,
       fileapi::FileSystemType type) = 0;
 
   virtual void InvalidateUsageCache(const GURL& origin_url,
                                     fileapi::FileSystemType type) = 0;
   virtual void StickyInvalidateUsageCache(const GURL& origin,
                                           fileapi::FileSystemType type) = 0;
+
+  virtual void AddFileUpdateObserver(
+      FileSystemType type,
+      FileUpdateObserver* observer,
+      base::SequencedTaskRunner* task_runner) = 0;
+  virtual void AddFileChangeObserver(
+      FileSystemType type,
+      FileChangeObserver* observer,
+      base::SequencedTaskRunner* task_runner) = 0;
+  virtual void AddFileAccessObserver(
+      FileSystemType type,
+      FileAccessObserver* observer,
+      base::SequencedTaskRunner* task_runner) = 0;
+  virtual const UpdateObserverList* GetUpdateObservers(
+      FileSystemType type) const = 0;
+  virtual const ChangeObserverList* GetChangeObservers(
+      FileSystemType type) const = 0;
+  virtual const AccessObserverList* GetAccessObservers(
+      FileSystemType type) const = 0;
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_QUOTA_UTIL_H_