Rearrange the automatic tests.

Split them into unit and integration tests.  Integration tests really
need to be run on the real platform (not in a VM etc) since they are
somewhat unstable or nonfunctional otherwise.

A few tests were previously broken by QUrl changes and they were repaired.
Removed one test since it was not providing a lot of value.

There are still a number of tests that rely on Q_AUTOTEST_EXPORT symbols.

Change-Id: Ic402abf0af946baa5945075d975b3f584f9ef280
Reviewed-by: Kalle Lehtonen <kalle.ju.lehtonen@nokia.com>

tests/auto/unit/qpaintervideosurface/qpaintervideosurface.pro

@@ -0,0 +1,18 @@
+CONFIG += testcase
+TARGET = tst_qpaintervideosurface
+
+QT += multimedia-private multimediawidgets-private testlib
+CONFIG += no_private_qt_headers_warning
+contains(QT_CONFIG, opengl) | contains(QT_CONFIG, opengles2) {
+   QT += opengl
+} else {
+   DEFINES += QT_NO_OPENGL
+}
+
+contains(QT_CONFIG, opengl): QT += opengl
+
+SOURCES += tst_qpaintervideosurface.cpp
+
+# QPA-minimal and OpenGL don't get along
+CONFIG += insignificant_test
+QT+=widgets