[ew] Move operation observers from QuotaUtil to FileSystemBackend.

storage/browser/fileapi/plugin_private_file_system_backend.h

 // Copyright 2013 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 STORAGE_BROWSER_FILEAPI_PLUGIN_PRIVATE_FILE_SYSTEM_BACKEND_H_
 #define STORAGE_BROWSER_FILEAPI_PLUGIN_PRIVATE_FILE_SYSTEM_BACKEND_H_
 
 #include <set>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "storage/browser/fileapi/file_system_backend.h"
 #include "storage/browser/fileapi/file_system_options.h"
 #include "storage/browser/fileapi/file_system_quota_util.h"
+#include "storage/browser/fileapi/task_runner_bound_observer_list.h"
 
 namespace base {
 class SequencedTaskRunner;
 }
 
 namespace content {
 class PluginPrivateFileSystemBackendTest;
 }
 
 namespace storage {
@@ skipping 54 matching lines @@
   virtual scoped_ptr<storage::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;
+  virtual const UpdateObserverList* GetUpdateObservers(
+      FileSystemType type) const OVERRIDE;
+  virtual const ChangeObserverList* GetChangeObservers(
+      FileSystemType type) const OVERRIDE;
+  virtual const AccessObserverList* GetAccessObservers(
+      FileSystemType type) const OVERRIDE;
 
   // FileSystemQuotaUtil overrides.
   virtual base::File::Error DeleteOriginDataOnFileTaskRunner(
       FileSystemContext* context,
       storage::QuotaManagerProxy* proxy,
       const GURL& origin_url,
       FileSystemType type) OVERRIDE;
   virtual void GetOriginsForTypeOnFileTaskRunner(
       FileSystemType type,
       std::set<GURL>* origins) OVERRIDE;
   virtual void GetOriginsForHostOnFileTaskRunner(
       FileSystemType type,
       const std::string& host,
       std::set<GURL>* origins) OVERRIDE;
   virtual int64 GetOriginUsageOnFileTaskRunner(
       FileSystemContext* context,
       const GURL& origin_url,
       FileSystemType type) OVERRIDE;
   virtual scoped_refptr<QuotaReservation>
       CreateQuotaReservationOnFileTaskRunner(
           const GURL& origin_url,
           FileSystemType type) OVERRIDE;
-  virtual void AddFileUpdateObserver(
-      FileSystemType type,
-      FileUpdateObserver* observer,
-      base::SequencedTaskRunner* task_runner) OVERRIDE;
-  virtual void AddFileChangeObserver(
-      FileSystemType type,
-      FileChangeObserver* observer,
-      base::SequencedTaskRunner* task_runner) OVERRIDE;
-  virtual void AddFileAccessObserver(
-      FileSystemType type,
-      FileAccessObserver* observer,
-      base::SequencedTaskRunner* task_runner) OVERRIDE;
-  virtual const UpdateObserverList* GetUpdateObservers(
-      FileSystemType type) const OVERRIDE;
-  virtual const ChangeObserverList* GetChangeObservers(
-      FileSystemType type) const OVERRIDE;
-  virtual const AccessObserverList* GetAccessObservers(
-      FileSystemType type) const OVERRIDE;
 
  private:
   friend class content::PluginPrivateFileSystemBackendTest;
 
   ObfuscatedFileUtil* obfuscated_file_util();
   const base::FilePath& base_path() const { return base_path_; }
 
   scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
   const FileSystemOptions file_system_options_;
   const base::FilePath base_path_;
   scoped_ptr<AsyncFileUtil> file_util_;
   FileSystemIDToPluginMap* plugin_map_;  // Owned by file_util_.
   base::WeakPtrFactory<PluginPrivateFileSystemBackend> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginPrivateFileSystemBackend);
 };
 
 }  // namespace storage
 
 #endif  // STORAGE_BROWSER_FILEAPI_PLUGIN_PRIVATE_FILE_SYSTEM_BACKEND_H_