google_apis: Move AuthOperation to auth_service.cc

chrome/browser/google_apis/operation_runner.cc

Index: chrome/browser/google_apis/operation_runner.cc
diff --git a/chrome/browser/google_apis/operation_runner.cc b/chrome/browser/google_apis/operation_runner.cc
index 6a19955b37366230f3a224a517cbb59751bef837..e4876c6cd516ba0906710c36079ed0730f0d74f3 100644
--- a/chrome/browser/google_apis/operation_runner.cc
+++ b/chrome/browser/google_apis/operation_runner.cc
@@ -39,11 +39,6 @@ void OperationRunner::CancelAll() {
   operation_registry_->CancelAll();
 }
 
-void OperationRunner::Authenticate(const AuthStatusCallback& callback) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  auth_service_->StartAuthentication(operation_registry_.get(), callback);
-}
-
 void OperationRunner::StartOperationWithRetry(
     AuthenticatedOperationInterface* operation) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));