Simplify directory path accounting.

webkit/fileapi/file_system_quota_util.h

 // Copyright (c) 2011 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_FILE_SYSTEM_QUOTA_UTIL_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_UTIL_H_
 
 #include <set>
 #include <string>
 
@@ skipping 51 matching lines @@
   virtual void GetOriginsForHostOnFileThread(fileapi::FileSystemType type,
                                              const std::string& host,
                                              std::set<GURL>* origins) = 0;
 
   // Called by quota client.
   // Returns the amount of data used for the origin for usage tracking.
   virtual int64 GetOriginUsageOnFileThread(const GURL& origin_url,
                                            fileapi::FileSystemType type) = 0;
 
   // Called by quota file util.
-  // Returns the amount of data used for the origin for usage tracking.
   virtual void UpdateOriginUsageOnFileThread(quota::QuotaManagerProxy* proxy,
                                              const GURL& origin_url,
                                              fileapi::FileSystemType type,
                                              int64 delta) = 0;
 
   // Called by file_system_operation.
   // Called when a read operation accesses the origin's storage data.
   virtual void NotifyOriginWasAccessedOnIOThread(
       quota::QuotaManagerProxy* proxy,
       const GURL& origin_url,
       fileapi::FileSystemType type) = 0;
 
   // Called by quota_file_util or file_writer_delegate.
-  // Called before an write operation modifies the origin's storage data.
+  // Called before a write operation modifies the origin's storage data.
   virtual void StartUpdateOriginOnFileThread(const GURL& origin_url,
                                              fileapi::FileSystemType type) = 0;
 
   // Called by quota_file_util or file_writer_delegate.
-  // Called after an write operation modifies the origin's storage data.
+  // Called after a write operation modifies the origin's storage data.
   virtual void EndUpdateOriginOnFileThread(const GURL& origin_url,
                                            fileapi::FileSystemType type) = 0;
 
   Proxy* proxy() { return proxy_.get(); }
 
  protected:
   explicit FileSystemQuotaUtil(base::MessageLoopProxy* file_thread);
   virtual ~FileSystemQuotaUtil();
 
  private:
   scoped_refptr<Proxy> proxy_;
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_UTIL_H_