[gtk+] gtk: Fix memleaks

[Benjamin Otte <otte src gnome org>]

commit 3d5173d4acaa754edd8270546bdcb4304744cffd
Author: Benjamin Otte <otte redhat com>
Date:   Wed Dec 14 00:06:01 2016 +0100

    gtk: Fix memleaks
    
    It turns out, some simple getters - such as
    gdk_drawing_context_get_clip() - love copying things before returning
    them.
    
    I guess somebody has to burn cycles...

 gtk/gtkwidget.c          |    6 +++++-
 gtk/inspector/recorder.c |    5 ++++-
 2 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 8578316..163f621 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -15616,6 +15616,7 @@ gtk_widget_render (GtkWidget            *widget,
   GtkSnapshot snapshot;
   GskRenderer *renderer;
   GskRenderNode *root;
+  cairo_region_t *clip;
 
   /* We only render double buffered on native windows */
   if (!gdk_window_has_native (window))
@@ -15626,11 +15627,13 @@ gtk_widget_render (GtkWidget            *widget,
     return;
 
   context = gsk_renderer_begin_draw_frame (renderer, region);
+  clip = gdk_drawing_context_get_clip (context);
 
   gtk_snapshot_init (&snapshot,
                      renderer,
-                     gdk_drawing_context_get_clip (context),
+                     clip,
                      "Render<%s>", G_OBJECT_TYPE_NAME (widget));
+  cairo_region_destroy (clip);
   gtk_widget_snapshot (widget, &snapshot);
   root = gtk_snapshot_finish (&snapshot);
   if (root != NULL)
@@ -15646,5 +15649,6 @@ gtk_widget_render (GtkWidget            *widget,
       gsk_render_node_unref (root);
     }
 
+
   gsk_renderer_end_draw_frame (renderer, context);
 }
diff --git a/gtk/inspector/recorder.c b/gtk/inspector/recorder.c
index bffab83..1a0f5d1 100644
--- a/gtk/inspector/recorder.c
+++ b/gtk/inspector/recorder.c
@@ -461,11 +461,13 @@ gtk_inspector_recorder_record_render (GtkInspectorRecorder *recorder,
 {
   GtkInspectorRecording *recording;
   GdkFrameClock *frame_clock;
+  cairo_region_t *clip;
 
   if (!gtk_inspector_recorder_is_recording (recorder))
     return;
 
   frame_clock = gtk_widget_get_frame_clock (widget);
+  clip = gdk_drawing_context_get_clip (context);
 
   recording = gtk_inspector_render_recording_new (gdk_frame_clock_get_frame_time (frame_clock),
                                                   gsk_renderer_get_profiler (renderer),
@@ -473,10 +475,11 @@ gtk_inspector_recorder_record_render (GtkInspectorRecorder *recorder,
                                                     gdk_window_get_width (window),
                                                     gdk_window_get_height (window) },
                                                   region,
-                                                  gdk_drawing_context_get_clip (context),
+                                                  clip,
                                                   node);
   gtk_inspector_recorder_add_recording (recorder, recording);
   g_object_unref (recording);
+  cairo_region_destroy (clip);
 }
 
 // vim: set et sw=2 ts=2: