Remove hasDirtyFromPreviousSync from backingstore.

It's always false (used to be some qws specific variable).

Change-Id: I3dc185dba4c778797f180410ce8d293336ecfd9c
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

2 files changed, 2 insertions, 9 deletions

diff --git a/src/widgets/kernel/qwidgetbackingstore.cpp b/src/widgets/kernel/qwidgetbackingstore.cpp
index ef4483195e..f9361cc357 100644
--- a/src/widgets/kernel/qwidgetbackingstore.cpp
+++ b/src/widgets/kernel/qwidgetbackingstore.cpp
@@ -696,8 +696,7 @@ void QWidgetBackingStore::updateLists(QWidget *cur)
 }
 
 QWidgetBackingStore::QWidgetBackingStore(QWidget *topLevel)
-    : tlw(topLevel), dirtyOnScreenWidgets(0), hasDirtyFromPreviousSync(false)
-    , fullUpdatePending(0)
+    : tlw(topLevel), dirtyOnScreenWidgets(0), fullUpdatePending(0)
 {
     store = tlw->backingStore();
     Q_ASSERT(store);
@@ -982,9 +981,6 @@ void QWidgetBackingStore::sync()
     if (updatesDisabled)
         return;
 
-    if (hasDirtyFromPreviousSync)
-        dirty += dirtyFromPreviousSync;
-
     // Contains everything that needs repaint.
     QRegion toClean(dirty);
 
diff --git a/src/widgets/kernel/qwidgetbackingstore_p.h b/src/widgets/kernel/qwidgetbackingstore_p.h
index 56c2547d3e..7c350932ea 100644
--- a/src/widgets/kernel/qwidgetbackingstore_p.h
+++ b/src/widgets/kernel/qwidgetbackingstore_p.h
@@ -85,9 +85,7 @@ public:
 
     inline bool isDirty() const
     {
-        return !(dirtyWidgets.isEmpty() && dirty.isEmpty() && !hasDirtyFromPreviousSync
-                 && !fullUpdatePending
-                );
+        return !(dirtyWidgets.isEmpty() && dirty.isEmpty() && !fullUpdatePending);
     }
 
     // ### Qt 4.6: Merge into a template function (after MSVC isn't supported anymore).
@@ -105,7 +103,6 @@ private:
     QVector<QWidget *> *dirtyOnScreenWidgets;
     QList<QWidget *> staticWidgets;
     QBackingStore *store;
-    uint hasDirtyFromPreviousSync : 1;
     uint fullUpdatePending : 1;
 
     QPoint tlwOffset;