QObservableInterface refactored

Explicit registerArbiter/unregisterArbiter methods.

QNode: removed QReadWriteLock for the QChangeArbiter, no need to protect as
the QChangeArbiter is always set in the main thread.
QBackendNode: similar for the QBackend, all locks removed as we are always
locked when synching changes.
QObservable was removed.

Change-Id: I570afbf3e3230ac9d9613474fedd7849aba7412a
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core/qobservableinterface_p.h b/src/core/qobservableinterface_p.h
index f35764c0f..4f11d2875 100644
--- a/src/core/qobservableinterface_p.h
+++ b/src/core/qobservableinterface_p.h
@@ -49,14 +49,14 @@ QT_BEGIN_NAMESPACE
 namespace Qt3D {
 
 class QObserverInterface;
+class QChangeArbiter;
 
 class QT3DCORESHARED_EXPORT QObservableInterface
 {
 public:
     virtual ~QObservableInterface();
 
-    virtual void registerObserver(QObserverInterface *observer) = 0;
-    virtual void unregisterObserver(QObserverInterface *observer) = 0;
+    virtual void setArbiter(QChangeArbiter *arbiter) = 0;
 
 protected:
     virtual void notifyObservers(const QSceneChangePtr &e) = 0;