gdata: Rename functions in GDataAuthService per OAuth2 terminology

chrome/browser/chromeos/gdata/operations_base.cc

Index: chrome/browser/chromeos/gdata/operations_base.cc
diff --git a/chrome/browser/chromeos/gdata/operations_base.cc b/chrome/browser/chromeos/gdata/operations_base.cc
index 5890d19f08683a479fb0d7a5b9f1a7020380f526..ac6c67ae483883b8d4bd49103bb57db85b563631 100644
--- a/chrome/browser/chromeos/gdata/operations_base.cc
+++ b/chrome/browser/chromeos/gdata/operations_base.cc
@@ -56,13 +56,13 @@ AuthOperation::AuthOperation(GDataOperationRegistry* registry,
                              const AuthStatusCallback& callback,
                              const std::string& refresh_token)
     : GDataOperationRegistry::Operation(registry),
-      profile_(profile), token_(refresh_token), callback_(callback) {
+      profile_(profile), refresh_token_(refresh_token), callback_(callback) {
 }
 
 AuthOperation::~AuthOperation() {}
 
 void AuthOperation::Start() {
-  DCHECK(!token_.empty());
+  DCHECK(!refresh_token_.empty());
   std::vector<std::string> scopes;
   scopes.push_back(kDocsListScope);
   scopes.push_back(kSpreadsheetsScope);
@@ -73,7 +73,7 @@ void AuthOperation::Start() {
   oauth2_access_token_fetcher_->Start(
       GaiaUrls::GetInstance()->oauth2_chrome_client_id(),
       GaiaUrls::GetInstance()->oauth2_chrome_client_secret(),
-      token_,
+      refresh_token_,
       scopes);
 }