3 files changed, 10 insertions, 10 deletions
diff --git a/src/quick/items/qquickspriteengine_p.h b/src/quick/items/qquickspriteengine_p.h
index 3ff5f8caee..b2d20e1579 100644
--- a/src/quick/items/qquickspriteengine_p.h
+++ b/src/quick/items/qquickspriteengine_p.h
@@ -111,9 +111,9 @@ public:
 Q_SIGNALS:
     void durationChanged(int arg);
 
-    void nameChanged(QString arg);
+    void nameChanged(const QString &arg);
 
-    void toChanged(QVariantMap arg);
+    void toChanged(const QVariantMap &arg);
 
     void durationVariationChanged(int arg);
 
@@ -130,7 +130,7 @@ public Q_SLOTS:
         }
     }
 
-    void setName(QString arg)
+    void setName(const QString &arg)
     {
         if (m_name != arg) {
             m_name = arg;
@@ -138,7 +138,7 @@ public Q_SLOTS:
         }
     }
 
-    void setTo(QVariantMap arg)
+    void setTo(const QVariantMap &arg)
     {
         if (m_to != arg) {
             m_to = arg;
@@ -216,11 +216,11 @@ public:
 private:
 Q_SIGNALS:
 
-    void globalGoalChanged(QString arg);
+    void globalGoalChanged(const QString &arg);
     void stateChanged(int idx);
 
 public Q_SLOTS:
-    void setGlobalGoal(QString arg)
+    void setGlobalGoal(const QString &arg)
     {
         if (m_globalGoal != arg) {
             m_globalGoal = arg;
diff --git a/src/quick/items/qquickspritesequence_p.h b/src/quick/items/qquickspritesequence_p.h
index 8f5a992942..d029482aec 100644
--- a/src/quick/items/qquickspritesequence_p.h
+++ b/src/quick/items/qquickspritesequence_p.h
@@ -92,8 +92,8 @@ Q_SIGNALS:
 
     void runningChanged(bool arg);
     void interpolateChanged(bool arg);
-    void goalSpriteChanged(QString arg);
-    void currentSpriteChanged(QString arg);
+    void goalSpriteChanged(const QString &arg);
+    void currentSpriteChanged(const QString &arg);
 
 public Q_SLOTS:
 
diff --git a/src/quick/util/qquickanimation_p.h b/src/quick/util/qquickanimation_p.h
index 80783b1b96..a9d8ee66c8 100644
--- a/src/quick/util/qquickanimation_p.h
+++ b/src/quick/util/qquickanimation_p.h
@@ -300,8 +300,8 @@ protected:
                             QObject *defaultTarget = 0);
 Q_SIGNALS:
     void durationChanged(int);
-    void fromChanged(QVariant);
-    void toChanged(QVariant);
+    void fromChanged(const QVariant &);
+    void toChanged(const QVariant &);
     void easingChanged(const QEasingCurve &);
     void propertiesChanged(const QString &);
     void targetChanged();