qtquick: Fixed all the layouting spam/warnings

Don't layout a view with 0x0.

src/private/quick/FloatingWindowQuick.cpp

@@ -85,13 +85,17 @@ void FloatingWindowQuick::init()
         }
     });
 
-    m_quickWindow->setResizeMode(QQuickView::SizeViewToRootObject);
+    const QSize minSize(100, 100);
+    m_quickWindow->resize(minSize);
+    m_quickWindow->contentItem()->setSize(minSize);
+
 
     m_quickWindow->setTransientParent(candidateParentWindow());
-
     QWidgetAdapter::setParent(m_quickWindow->contentItem());
     QWidgetAdapter::makeItemFillParent(this);
 
+    m_quickWindow->setResizeMode(QQuickView::SizeViewToRootObject);
+
     QQuickItem *visualItem = createItem(Config::self().qmlEngine(), QStringLiteral("qrc:/kddockwidgets/private/quick/qml/FloatingWindow.qml"));
     Q_ASSERT(visualItem);
     visualItem->setParent(this);

tests/Testing.cpp

@@ -61,9 +61,6 @@ static bool shouldBlacklistWarning(const QString &msg, const QString &category)
            msg.contains(QLatin1String("Testing::")) ||
            msg.contains(QLatin1String("outside any known screen, using primary screen"))
 #ifdef KDDOCKWIDGETS_QTQUICK
-            // TODO: Debug why this happens
-            || msg.contains(QLatin1String("Layouting::ItemContainer::setSize_recursive"))
-
             // TODO: Fix later, not important right now
             || msg.contains(QLatin1String("Binding loop detected for property"))
 #endif