Wired GDataFileSystem::GetFile() method with internal cache.

chrome/browser/chromeos/gdata/gdata_documents_service.cc

Index: chrome/browser/chromeos/gdata/gdata_documents_service.cc
diff --git a/chrome/browser/chromeos/gdata/gdata_documents_service.cc b/chrome/browser/chromeos/gdata/gdata_documents_service.cc
index 3ee58da3464fc6cd095062322573544fafd5ecc8..fab0db3ad23a32e207c5ef4e2ab84eb8bd3935b3 100644
--- a/chrome/browser/chromeos/gdata/gdata_documents_service.cc
+++ b/chrome/browser/chromeos/gdata/gdata_documents_service.cc
@@ -110,11 +110,13 @@ void DocumentsService::GetAccountMetadata(const GetDataCallback& callback) {
 
 void DocumentsService::DownloadDocument(
     const FilePath& virtual_path,
+    const FilePath& local_cache_path,
     const GURL& document_url,
     DocumentExportFormat format,
     const DownloadActionCallback& callback) {
   DownloadFile(
       virtual_path,
+      local_cache_path,
       chrome_browser_net::AppendQueryParameter(document_url,
                                                "exportFormat",
                                                GetExportFormatParam(format)),
@@ -122,11 +124,12 @@ void DocumentsService::DownloadDocument(
 }
 
 void DocumentsService::DownloadFile(const FilePath& virtual_path,
+                                    const FilePath& local_cache_path,
                                     const GURL& document_url,
                                     const DownloadActionCallback& callback) {
   StartOperationOnUIThread(
       new DownloadFileOperation(operation_registry_.get(), profile_, callback,
-                                document_url, virtual_path));
+                                document_url, virtual_path, local_cache_path));
 }
 
 void DocumentsService::DeleteDocument(const GURL& document_url,