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

chrome/browser/chromeos/gdata/gdata_mock.h

Index: chrome/browser/chromeos/gdata/gdata_mock.h
diff --git a/chrome/browser/chromeos/gdata/gdata_mock.h b/chrome/browser/chromeos/gdata/gdata_mock.h
index bd848e09f3b67198725fa95c7f1575874506504b..1f63410bfce3d6c2499e6750d51e1a06a315cc8c 100644
--- a/chrome/browser/chromeos/gdata/gdata_mock.h
+++ b/chrome/browser/chromeos/gdata/gdata_mock.h
@@ -36,7 +36,8 @@ class MockDocumentsService : public DocumentsServiceInterface {
   MOCK_METHOD1(GetAccountMetadata, void(const GetDataCallback& callback));
   MOCK_METHOD2(DeleteDocument, void(const GURL& document_url,
                                     const EntryActionCallback& callback));
-  MOCK_METHOD4(DownloadDocument, void(const FilePath& virtual_path,
+  MOCK_METHOD5(DownloadDocument, void(const FilePath& virtual_path,
+                                      const FilePath& local_cache_path,
                                       const GURL& content_url,
                                       DocumentExportFormat format,
                                       const DownloadActionCallback& callback));
@@ -59,7 +60,8 @@ class MockDocumentsService : public DocumentsServiceInterface {
                void(const GURL& parent_content_url,
                     const FilePath::StringType& directory_name,
                     const GetDataCallback& callback));
-  MOCK_METHOD3(DownloadFile, void(const FilePath& virtual_path,
+  MOCK_METHOD4(DownloadFile, void(const FilePath& virtual_path,
+                                  const FilePath& local_cache_path,
                                   const GURL& content_url,
                                   const DownloadActionCallback& callback));
   MOCK_METHOD2(InitiateUpload,