Fix build with QT_NO_ACCESSIBILITY

The accessibility() function is ifdef'd in the base class,
which makes build fail when Q_DECL_OVERRIDE is used here.

Change-Id: Ic3d800ccf32b39f5bc8d3f94d222bc0d34457057
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>

src/client/qwaylandintegration.cpp

@@ -119,8 +119,6 @@ QWaylandIntegration::QWaylandIntegration()
     , mNativeInterface(new QWaylandNativeInterface(this))
 #ifndef QT_NO_ACCESSIBILITY
     , mAccessibility(new QPlatformAccessibility())
-#else
-    , mAccessibility(0)
 #endif
     , mClientBufferIntegrationInitialized(false)
     , mServerBufferIntegrationInitialized(false)
@@ -245,10 +243,12 @@ QVariant QWaylandIntegration::styleHint(StyleHint hint) const
     return QPlatformIntegration::styleHint(hint);
 }
 
+#ifndef QT_NO_ACCESSIBILITY
 QPlatformAccessibility *QWaylandIntegration::accessibility() const
 {
     return mAccessibility;
 }
+#endif
 
 QPlatformServices *QWaylandIntegration::services() const
 {

src/client/qwaylandintegration_p.h

@@ -88,7 +88,9 @@ public:
 
     QVariant styleHint(StyleHint hint) const Q_DECL_OVERRIDE;
 
+#ifndef QT_NO_ACCESSIBILITY
     QPlatformAccessibility *accessibility() const Q_DECL_OVERRIDE;
+#endif
 
     QPlatformServices *services() const Q_DECL_OVERRIDE;
 
@@ -123,7 +125,9 @@ private:
     QWaylandDisplay *mDisplay;
     QPlatformNativeInterface *mNativeInterface;
     QScopedPointer<QPlatformInputContext> mInputContext;
+#ifndef QT_NO_ACCESSIBILITY
     QPlatformAccessibility *mAccessibility;
+#endif
     bool mClientBufferIntegrationInitialized;
     bool mServerBufferIntegrationInitialized;
     bool mShellIntegrationInitialized;