[gtk+] sizerequest: Don't pass uninitialized values to measure

[Timm Bäder <baedert src gnome org>]

commit 4dee08dd52aac551d4e0303a56902c9179a6efa4
Author: Timm Bäder <mail baedert org>
Date:   Sat Oct 28 11:37:13 2017 +0200

    sizerequest: Don't pass uninitialized values to measure
    
    The GtkWidgetClass::measure vfunc is not required to assign a value to
    any of the (out) parameters, so we need to initialize the locals we pass
    to it, otherwise we can end up with a garbage size request.

 gtk/gtksizerequest.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtksizerequest.c b/gtk/gtksizerequest.c
index 9d991b1..458a6d1 100644
--- a/gtk/gtksizerequest.c
+++ b/gtk/gtksizerequest.c
@@ -189,8 +189,8 @@ gtk_widget_query_size_for_orientation (GtkWidget        *widget,
       else
         {
           int dummy = 0;
-          int minimum_for_size;
-          int natural_for_size;
+          int minimum_for_size = 0;
+          int natural_for_size = 0;
 
           /* Pull the base natural size from the cache as it's needed to adjust
            * the proposed 'for_size' */