[gtk+] Fix compiler warnings

[Matthias Clasen <matthiasc src gnome org>]

commit 9e78fbaac448e3211eb460c8c6febdd773c820a4
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Oct 21 15:17:36 2017 +0200

    Fix compiler warnings
    
    I overlooked these when I recently did the render node api changes.

 gsk/gskvulkanrenderpass.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/gsk/gskvulkanrenderpass.c b/gsk/gskvulkanrenderpass.c
index 6b83e8a..029c99e 100644
--- a/gsk/gskvulkanrenderpass.c
+++ b/gsk/gskvulkanrenderpass.c
@@ -909,7 +909,7 @@ gsk_vulkan_render_pass_upload (GskVulkanRenderPass  *self,
           {
             cairo_surface_t *surface;
 
-            surface = gsk_cairo_node_peek_surface (op->render.node);
+            surface = (cairo_surface_t *)gsk_cairo_node_peek_surface (op->render.node);
             op->render.source = gsk_vulkan_image_new_from_data (uploader,
                                                                 cairo_image_surface_get_data (surface),
                                                                 cairo_image_surface_get_width (surface),
@@ -1224,8 +1224,8 @@ gsk_vulkan_render_pass_collect_vertex_data (GskVulkanRenderPass *self,
                                                           data + n_bytes + offset,
                                                           GSK_VULKAN_RENDERER 
(gsk_vulkan_render_get_renderer (render)),
                                                           &op->text.node->bounds,
-                                                          gsk_text_node_peek_font (op->text.node),
-                                                          gsk_text_node_peek_glyphs (op->text.node),
+                                                          (PangoFont *)gsk_text_node_peek_font 
(op->text.node),
+                                                          (PangoGlyphString *)gsk_text_node_peek_glyphs 
(op->text.node),
                                                           gsk_text_node_peek_color (op->text.node),
                                                           gsk_text_node_get_x (op->text.node),
                                                           gsk_text_node_get_y (op->text.node),
@@ -1242,8 +1242,8 @@ gsk_vulkan_render_pass_collect_vertex_data (GskVulkanRenderPass *self,
                                                                 data + n_bytes + offset,
                                                                 GSK_VULKAN_RENDERER 
(gsk_vulkan_render_get_renderer (render)),
                                                                 &op->text.node->bounds,
-                                                                gsk_text_node_peek_font (op->text.node),
-                                                                gsk_text_node_peek_glyphs (op->text.node),
+                                                                (PangoFont *)gsk_text_node_peek_font 
(op->text.node),
+                                                                (PangoGlyphString 
*)gsk_text_node_peek_glyphs (op->text.node),
                                                                 gsk_text_node_get_x (op->text.node),
                                                                 gsk_text_node_get_y (op->text.node),
                                                                 op->text.start_glyph,