gdata: Expose authentication states from GDataDocumentsService.

chrome/browser/chromeos/gdata/mock_gdata_documents_service.h

Index: chrome/browser/chromeos/gdata/mock_gdata_documents_service.h
diff --git a/chrome/browser/chromeos/gdata/mock_gdata_documents_service.h b/chrome/browser/chromeos/gdata/mock_gdata_documents_service.h
index 1c582e0435452c261d2ee664b1e9a1ff202af02c..6a33cb91bd7b7c0bad3d1ba0e9ce848a77bf2eec 100644
--- a/chrome/browser/chromeos/gdata/mock_gdata_documents_service.h
+++ b/chrome/browser/chromeos/gdata/mock_gdata_documents_service.h
@@ -77,6 +77,8 @@ class MockDocumentsService : public DocumentsServiceInterface {
   MOCK_METHOD3(AuthorizeApp, void(const GURL& resource_url,
                                   const std::string& app_ids,
                                   const GetDataCallback& callback));
+  MOCK_CONST_METHOD0(IsFullyAuthenticated, bool());
+  MOCK_CONST_METHOD0(IsPartiallyAuthenticated, bool());
 
   void set_account_metadata(base::Value* account_metadata) {
     feed_data_.reset(account_metadata);