Merge remote-tracking branch 'origin/5.6' into 5.7

Conflicts:
	src/corelib/mimetypes/qmimeprovider.cpp
	src/corelib/mimetypes/qmimetype.cpp

Change-Id: Ib483ddb6bfc380e7c8f195feca535703814c3872

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gui/kernel/qoffscreensurface.cpp b/src/gui/kernel/qoffscreensurface.cpp
index d18847c434..41f7251277 100644
--- a/src/gui/kernel/qoffscreensurface.cpp
+++ b/src/gui/kernel/qoffscreensurface.cpp
@@ -183,6 +183,7 @@ void QOffscreenSurface::create()
             if (QThread::currentThread() != qGuiApp->thread())
                 qWarning("Attempting to create QWindow-based QOffscreenSurface outside the gui thread. Expect failures.");
             d->offscreenWindow = new QWindow(d->screen);
+            d->offscreenWindow->setObjectName("QOffscreenSurface");
             // Remove this window from the global list since we do not want it to be destroyed when closing the app.
             // The QOffscreenSurface has to be usable even after exiting the event loop.
             QGuiApplicationPrivate::window_list.removeOne(d->offscreenWindow);