[cheese] Fix resizing and scaling of video preview

[David King <davidk src gnome org>]

commit 8c618eab2b32a7551ad5ab86174d863f81ffcc19
Author: David King <amigadave amigadave com>
Date:   Tue Sep 22 13:31:08 2015 +0100

    Fix resizing and scaling of video preview
    
    Allow the preview to expand, and set a reasonable minimum height and
    width.

 data/cheese-viewport.json |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/data/cheese-viewport.json b/data/cheese-viewport.json
index 312a2b6..cf03fce 100644
--- a/data/cheese-viewport.json
+++ b/data/cheese-viewport.json
@@ -4,7 +4,11 @@
   "type": "ClutterActor",
   "child::x-align": "CLUTTER_BIN_ALIGNMENT_CENTER",
   "child::y-align": "CLUTTER_BIN_ALIGNMENT_CENTER",
-  "content-gravity": "CLUTTER_CONTENT_GRAVITY_RESIZE_ASPECT"
+  "content-gravity": "CLUTTER_CONTENT_GRAVITY_RESIZE_ASPECT",
+  "x-expand": true,
+  "y-expand": true,
+  "min-height":75,
+  "min-width":100
 },
 {
   "id": "background",