Fixed file/directory url resolution for external mount point provider.

webkit/fileapi/file_system_file_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_FILE_UTIL_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 
 #include "base/callback.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/file_util_proxy.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/singleton.h"
 #include "base/platform_file.h"
 #include "base/tracked_objects.h"
+#include "webkit/fileapi/file_system_types.h"
 
 namespace base {
 struct PlatformFileInfo;
 class MessageLoopProxy;
 class Time;
 }
 
 namespace fileapi {
 
 using base::PlatformFile;
 using base::PlatformFileError;
-
 class FileSystemOperationContext;
 
 // A large part of this implementation is taken from base::FileUtilProxy.
 // TODO(dmikurube, kinuko): Clean up base::FileUtilProxy to factor out common
 // routines. It includes dropping FileAPI-specific routines from FileUtilProxy.
 class FileSystemFileUtil {
  public:
   static FileSystemFileUtil* GetInstance();
 
   // Creates or opens a file with the given flags.  It is invalid to pass NULL
@@ skipping 19 matching lines @@
   // |created| of the callback argument is set true and |error code|
   // is set PLATFORM_FILE_OK.
   // If the file already exists, |created| is set false and |error code|
   // is set PLATFORM_FILE_OK.
   // If the file hasn't existed but it couldn't be created for some other
   // reasons, |created| is set false and |error code| indicates the error.
   virtual PlatformFileError EnsureFileExists(
       FileSystemOperationContext* context,
       const FilePath& file_path, bool* created);
 
+  // Maps |virtual_path| given |context| into |local_path| which represents
+  // physical file location on the host OS. This may not always make sense for
+  // all subclasses.
+  virtual PlatformFileError GetLocalFilePath(
+      FileSystemOperationContext* context,
+      const FilePath& virtual_path,
+      FilePath* local_path);
+
   // Retrieves the information about a file.  It is invalid to pass NULL for the
   // callback.
   virtual PlatformFileError GetFileInfo(
       FileSystemOperationContext* context,
       const FilePath& file_,
       base::PlatformFileInfo* file_info,
       FilePath* platform_path);
 
   virtual PlatformFileError ReadDirectory(
       FileSystemOperationContext* context,
@@ skipping 113 matching lines @@
   virtual AbstractFileEnumerator* CreateFileEnumerator(
       const FilePath& root_path);
 
   friend struct DefaultSingletonTraits<FileSystemFileUtil>;
   DISALLOW_COPY_AND_ASSIGN(FileSystemFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_