gdata: Get rid of GetGDataCacheTmpDirectory() and friends

chrome/browser/download/download_file_picker_chromeos.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/download/download_file_picker_chromeos.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/memory/ref_counted.h"
@@ skipping 51 matching lines @@
       // If we're trying to download a file into gdata, save path in external
       // data.
       content::DownloadItem* download =
           download_manager_->GetActiveDownloadItem(download_id_);
       if (download) {
         gdata::GDataDownloadObserver::SetGDataPath(download, path);
         download->SetDisplayName(path.BaseName());
         download->SetIsTemporary(true);
 
         const FilePath gdata_tmp_download_dir =
-            system_service->file_system()->GetGDataTempDownloadFolderPath();
+            system_service->file_system()->GetCacheDirectoryPath(
+                gdata::GDataRootDirectory::CACHE_TYPE_TMP_DOWNLOADS);
 
         // Swap the gdata path with a local path. Local path must be created
         // on the IO thread pool.
         FilePath* gdata_tmp_download_path(new FilePath());
         BrowserThread::GetBlockingPool()->PostTaskAndReply(FROM_HERE,
             base::Bind(&gdata::GDataDownloadObserver::GetGDataTempDownloadPath,
                        gdata_tmp_download_dir,
                        gdata_tmp_download_path),
             base::Bind(&GDataTempFileSelected,
                        download_manager_,
                        base::Owned(gdata_tmp_download_path),
                        download_id_));
       }
     } else {
       download_manager_->FileSelected(path, download_id_);
     }
   }
   delete this;
 }