gdata: Get rid of GetGDataCacheTmpDirectory() and friends

chrome/browser/download/download_file_picker_chromeos.cc

Index: chrome/browser/download/download_file_picker_chromeos.cc
diff --git a/chrome/browser/download/download_file_picker_chromeos.cc b/chrome/browser/download/download_file_picker_chromeos.cc
index 2f3fdc4ab50cbdbb5e17dec3b82a336def6c842b..873299fa3a06712e214d3bd72aa3e846d2414bdf 100644
--- a/chrome/browser/download/download_file_picker_chromeos.cc
+++ b/chrome/browser/download/download_file_picker_chromeos.cc
@@ -69,7 +69,8 @@ void DownloadFilePickerChromeOS::FileSelected(const FilePath& selected_path,
         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.