[filebrowser] Show progress indication, while files from GData are being downloaded.

chrome/browser/chromeos/extensions/file_browser_private_api.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 "chrome/browser/chromeos/extensions/file_browser_private_api.h"
 
 #include <utility>
 
 #include "base/base64.h"
 #include "base/bind.h"
@@ skipping 1355 matching lines @@
   SET_STRING(IDS_FILE_BROWSER, DOWNLOADS_DIRECTORY_WARNING);
 
   SET_STRING(IDS_FILE_BROWSER, ERROR_CREATING_FOLDER);
   SET_STRING(IDS_FILE_BROWSER, ERROR_INVALID_CHARACTER);
   SET_STRING(IDS_FILE_BROWSER, ERROR_RESERVED_NAME);
   SET_STRING(IDS_FILE_BROWSER, ERROR_HIDDEN_NAME);
   SET_STRING(IDS_FILE_BROWSER, ERROR_WHITESPACE_NAME);
   SET_STRING(IDS_FILE_BROWSER, ERROR_NEW_FOLDER_EMPTY_NAME);
   SET_STRING(IDS_FILE_BROWSER, NEW_FOLDER_BUTTON_LABEL);
   SET_STRING(IDS_FILE_BROWSER, FILENAME_LABEL);
+  SET_STRING(IDS_FILE_BROWSER, PREPARING_LABEL);
 
   SET_STRING(IDS_FILE_BROWSER, DIMENSIONS_LABEL);
   SET_STRING(IDS_FILE_BROWSER, DIMENSIONS_FORMAT);
 
   SET_STRING(IDS_FILE_BROWSER, IMAGE_DIMENSIONS);
   SET_STRING(IDS_FILE_BROWSER, VOLUME_LABEL);
   SET_STRING(IDS_FILE_BROWSER, READ_ONLY);
 
   SET_STRING(IDS_FILE_BROWSER, ARCHIVE_MOUNT_FAILED);
   SET_STRING(IDS_FILE_BROWSER, UNMOUNT_FAILED);
@@ skipping 445 matching lines @@
   }
 
   scoped_ptr<ListValue> responses(new ListValue());
   for (size_t i = 0; i < files.size(); ++i) {
     DCHECK(gdata::util::IsUnderGDataMountPoint(files[i].path));
     FilePath file_path = gdata::util::ExtractGDataPath(files[i].path);
     scoped_ptr<DictionaryValue> result(new DictionaryValue());
     result->SetBoolean("canceled", file_system->CancelOperation(file_path));
     GURL file_url;
     if (file_manager_util::ConvertFileToFileSystemUrl(profile_,
-            FilePath("gdata").Append(file_path),
+            FilePath("/special/gdata").Append(file_path),

[zel, 2012/03/22 17:21:46]

THis does not look right. Why do you need /special here?

[dgozman, 2012/03/23 12:44:05]

This is no different from ProgessStatusToDictionaryValue.
ConvertFileToFileSystemUrl expects url starting with '/special/gdata' and passes
it to CrosMountPointProvider.

             source_url_.GetOrigin(),
             &file_url)) {
       result->SetString("fileUrl", file_url.spec());
     }
 
     responses->Append(result.release());
   }
   result_.reset(responses.release());
   SendResponse(true);
 }