Adding FileUtil::CreateSnapshotFile

webkit/fileapi/isolated_file_util.cc

 // 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.
 
 #include "webkit/fileapi/isolated_file_util.h"
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
+#include "webkit/blob/shareable_file_reference.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_operation_context.h"
 #include "webkit/fileapi/file_system_url.h"
 #include "webkit/fileapi/isolated_context.h"
 #include "webkit/fileapi/native_file_util.h"
 
 using base::PlatformFileError;
 using base::PlatformFileInfo;
 
 namespace fileapi {
@@ skipping 343 matching lines @@
     const FileSystemURL& url) {
   return base::PLATFORM_FILE_ERROR_SECURITY;
 }
 
 PlatformFileError IsolatedFileUtil::DeleteSingleDirectory(
     FileSystemOperationContext* context,
     const FileSystemURL& url) {
   return base::PLATFORM_FILE_ERROR_SECURITY;
 }
 
+scoped_refptr<webkit_blob::ShareableFileReference>
+IsolatedFileUtil::CreateSnapshotFile(
+    FileSystemOperationContext* context,
+    const FileSystemURL& url,
+    base::PlatformFileError* result,
+    base::PlatformFileInfo* file_info,
+    FilePath* platform_path) {
+  DCHECK(result);
+  *result = GetFileInfo(context, url, file_info, platform_path);
+  return NULL;
+}
+
 bool IsolatedFileUtil::GetPlatformPath(const FileSystemURL& url,
                                        FilePath* platform_path) const {
   DCHECK(platform_path);
   std::string filesystem_id;
   if (!IsolatedContext::GetInstance()->CrackIsolatedPath(
           url.path(), &filesystem_id, NULL, platform_path))
     return false;
   return true;
 }
 
 }  // namespace