gdata: Expose authentication states from GDataDocumentsService.

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 09b5dded65150cc5a6a0f4dbb543e377a14099ce..0a8213f5520d0a3c6ac7df7cbe5db948efa240e9 100644
--- a/chrome/browser/chromeos/gdata/gdata_documents_service.cc
+++ b/chrome/browser/chromeos/gdata/gdata_documents_service.cc
@@ -271,4 +271,16 @@ void DocumentsService::AuthorizeApp(const GURL& resource_url,
                                  resource_url, app_ids));
 }
 
+bool DocumentsService::IsFullyAuthenticated() const {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  return runner_->auth_service()->IsFullyAuthenticated();
+}
+
+bool DocumentsService::IsPartiallyAuthenticated() const {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  return runner_->auth_service()->IsPartiallyAuthenticated();
+}
+
 }  // namespace gdata