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

webkit/fileapi/local_file_system_file_util.cc

 // 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.
 
 #include "webkit/fileapi/local_file_system_file_util.h"
 
 #include "base/file_util_proxy.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_operation_context.h"
@@ skipping 26 matching lines @@
     bool* created) {
   FilePath local_path =
       GetLocalPath(context, context->src_origin_url(), context->src_type(),
           file_path);
   if (local_path.empty())
     return base::PLATFORM_FILE_ERROR_INVALID_OPERATION;
   return FileSystemFileUtil::GetInstance()->EnsureFileExists(
       context, local_path, created);
 }
 
+PlatformFileError LocalFileSystemFileUtil::GetLocalFilePath(
+    FileSystemOperationContext* context,
+    const FilePath& virtual_path,
+    FilePath* local_path) {
+  FilePath path =
+      GetLocalPath(context, context->src_origin_url(), context->src_type(),
+                   virtual_path);
+  if (path.empty())
+    return base::PLATFORM_FILE_ERROR_NOT_FOUND;
+
+  *local_path = path;
+  return base::PLATFORM_FILE_OK;
+}
+
 PlatformFileError LocalFileSystemFileUtil::GetFileInfo(
     FileSystemOperationContext* context,
     const FilePath& file_path,
     base::PlatformFileInfo* file_info,
     FilePath* platform_file_path) {
   FilePath local_path =
       GetLocalPath(context, context->src_origin_url(), context->src_type(),
           file_path);
   if (local_path.empty())
     return base::PLATFORM_FILE_ERROR_INVALID_OPERATION;
@@ skipping 106 matching lines @@
   return FileSystemFileUtil::GetInstance()->Truncate(
       context, local_path, length);
 }
 
 FilePath LocalFileSystemFileUtil::GetLocalPath(
     FileSystemOperationContext* context,
     const GURL& origin_url,
     FileSystemType type,
     const FilePath& virtual_path) {
   FilePath root = context->file_system_context()->path_manager()->
-      GetFileSystemRootPathOnFileThread(origin_url, type, virtual_path, false);
+      ValidateFileSystemRootAndGetPathOnFileThread(origin_url, type,
+          virtual_path, false);
   if (root.empty())
     return FilePath();
   return root.Append(virtual_path);
 }
 
 }  // namespace fileapi