rbutil: Use references to avoid creating temporary objects.

Get rid of some unnecessary object creating / copying by using
references.

Change-Id: Ia44e34f6f66d230caa9af7ef7c0eca73be12de2a

1 files changed, 2 insertions, 2 deletions

diff --git a/utils/rbutilqt/test/stubs/stubs-talkgenerator.cpp b/utils/rbutilqt/test/stubs/stubs-talkgenerator.cpp
index 295dc81a78..a67600a0ae 100644
--- a/utils/rbutilqt/test/stubs/stubs-talkgenerator.cpp
+++ b/utils/rbutilqt/test/stubs/stubs-talkgenerator.cpp
@@ -54,7 +54,7 @@ public:
     TTSFakeEspeak(QObject *parent): TTSBase(parent) {}
     virtual bool start(QString *errStr) { (void)errStr; return true; }
     virtual bool stop() { return true; }
-    virtual TTSStatus voice(QString text, QString wavfile, QString *errStr)
+    virtual TTSStatus voice(const QString& text, const QString& wavfile, QString *errStr)
     { (void)text; (void)wavfile; (void)errStr; return NoError; }
     virtual QString voiceVendor() { return QString("DummyVendor"); }
     virtual bool configOk() { return true; }
@@ -67,7 +67,7 @@ TTSBase::TTSBase(QObject* parent) : EncTtsSettingInterface(parent)
 {
 }
 
-TTSStatus TTSBase::voice(QString /*text*/, QString /*wavfile*/, QString* /*errStr*/)
+TTSStatus TTSBase::voice(const QString& /*text*/, const QString& /*wavfile*/, QString* /*errStr*/)
 {
     return NoError;
 }