Set Qt::AA_ShareOpenGLContexts in QtWebEngine::initialize()

QtWebEngine::initialize() does the same as passing AA_ShareOpenGLContexts
to the QCoreApplication constructor, so it should also behave the same.
Other Qt classes (e.g. QOpenGLWidget) actually check for the attribute
to adapt.

Change-Id: I6068a9a3f5736c708944d69c0df853143c3e9dd1
Reviewed-by: Michael Brüning <michael.bruning@theqtcompany.com>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/webengine/api/qtwebengineglobal.cpp b/src/webengine/api/qtwebengineglobal.cpp
index db9d7552d..07561be6e 100644
--- a/src/webengine/api/qtwebengineglobal.cpp
+++ b/src/webengine/api/qtwebengineglobal.cpp
@@ -107,6 +107,9 @@ void initialize()
     shareContext->create();
     qAddPostRoutine(deleteShareContext);
     qt_gl_set_global_share_context(shareContext);
+
+    // Classes like QOpenGLWidget check for the attribute
+    app->setAttribute(Qt::AA_ShareOpenGLContexts);
 }
 } // namespace QtWebEngine