Hack to not leave SolarMutex released after g_main_loop_run call

Change-Id: I26923469d08308233ce3fabe749806c16d75cecd
diff --git a/ucb/Library_ucpgio1.mk b/ucb/Library_ucpgio1.mk
index eb39c8e..000f557 100644
--- a/ucb/Library_ucpgio1.mk
+++ b/ucb/Library_ucpgio1.mk
@@ -21,6 +21,7 @@ $(eval $(call gb_Library_use_libraries,ucpgio1,\
	sal \
	salhelper \
	ucbhelper \
	vcl \
))

$(eval $(call gb_Library_use_externals,ucpgio1,\
diff --git a/ucb/source/ucp/gio/gio_content.cxx b/ucb/source/ucp/gio/gio_content.cxx
index 8621782..f7ce5f9 100644
--- a/ucb/source/ucp/gio/gio_content.cxx
+++ b/ucb/source/ucp/gio/gio_content.cxx
@@ -62,6 +62,7 @@
#include <ucbhelper/propertyvalueset.hxx>
#include <ucbhelper/interactionrequest.hxx>
#include <ucbhelper/cancelcommandexecution.hxx>
#include <vcl/svapp.hxx>

#include <osl/conditn.hxx>

@@ -325,7 +326,15 @@ void MountOperation::Completed(GObject *source, GAsyncResult *res, gpointer user
GError *MountOperation::Mount(GFile *pFile)
{
    g_file_mount_enclosing_volume(pFile, G_MOUNT_MOUNT_NONE, mpAuthentication, NULL, MountOperation::Completed, this);
    g_main_loop_run(mpLoop);
    {
        //HACK: At least the gdk_threads_set_lock_functions(GdkThreadsEnter,
        // GdkThreadsLeave) call in vcl/unx/gtk/app/gtkinst.cxx will lead to
        // GdkThreadsLeave unlock the SolarMutex down to zero at the end of
        // g_main_loop_run, so we need ~SolarMutexReleaser to raise it back to
        // the original value again:
        SolarMutexReleaser rel;
        g_main_loop_run(mpLoop);
    }
    return mpError;
}