Merge remote branch 'origin/4.6' into qt-4.7-from-4.6

Conflicts:
	bin/syncqt
	src/3rdparty/webkit/VERSION
	src/3rdparty/webkit/WebCore/ChangeLog
	src/3rdparty/webkit/WebCore/bridge/qt/qt_instance.cpp
	src/3rdparty/webkit/WebCore/bridge/qt/qt_runtime.h
	src/3rdparty/webkit/WebCore/page/FrameView.cpp
	src/3rdparty/webkit/WebCore/page/FrameView.h
	src/3rdparty/webkit/WebCore/platform/ScrollView.cpp
	src/3rdparty/webkit/WebCore/platform/ScrollView.h
	src/corelib/plugin/quuid.cpp
	src/gui/dialogs/qfontdialog.cpp
	src/multimedia/audio/qaudiodevicefactory.cpp
	src/opengl/qgl.cpp
	src/openvg/qpaintengine_vg.cpp
	tests/auto/qxmlquery/tst_qxmlquery.cpp

1 files changed, 56 insertions, 0 deletions

diff --git a/tests/auto/qsharedpointer/tst_qsharedpointer.cpp b/tests/auto/qsharedpointer/tst_qsharedpointer.cpp
index 4e23cb1d50..6b4904f964 100644
--- a/tests/auto/qsharedpointer/tst_qsharedpointer.cpp
+++ b/tests/auto/qsharedpointer/tst_qsharedpointer.cpp
@@ -95,6 +95,8 @@ private slots:
     void creating();
     void creatingQObject();
     void mixTrackingPointerCode();
+    void reentrancyWhileDestructing();
+
     void threadStressTest_data();
     void threadStressTest();
     void map();
@@ -1870,6 +1872,60 @@ void tst_QSharedPointer::invalidConstructs()
     }
 }
 
+namespace QTBUG11730 {
+    struct IB
+    {
+        virtual ~IB() {}
+    };
+
+    struct IA
+    {
+        virtual QSharedPointer<IB> getB() = 0;
+    };
+
+    struct B: public IB
+    {
+        IA *m_a;
+        B(IA *a_a) :m_a(a_a)
+        { }
+        ~B()
+        {
+            QSharedPointer<IB> b = m_a->getB();
+        }
+    };
+
+    struct A: public IA
+    {
+        QSharedPointer<IB> b;
+
+        virtual QSharedPointer<IB> getB()
+        {
+            return b;
+        }
+
+        A()
+        {
+            b = QSharedPointer<IB>(new B(this));
+        }
+
+        ~A()
+        {
+            b.clear();
+        }
+    };
+}
+
+void tst_QSharedPointer::reentrancyWhileDestructing()
+{
+    // this bug is about recursing back into QSharedPointer::clear()
+    // from inside it
+    // that is, the destructor of the object being deleted recurses
+    // into the same QSharedPointer object.
+    // First reported as QTBUG-11730
+    QTBUG11730::A obj;
+}
+
+
 QTEST_MAIN(tst_QSharedPointer)
 
 #include "tst_qsharedpointer.moc"