[metacity] effects: fix build warnings

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 7446eb6157fb20ed084c992bda47774d70386513
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Sep 20 05:50:55 2015 +0300

    effects: fix build warnings

 src/core/effects.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/core/effects.c b/src/core/effects.c
index e3c6dcd..ca176d9 100644
--- a/src/core/effects.c
+++ b/src/core/effects.c
@@ -646,6 +646,12 @@ run_default_effect_handler (MetaEffect *effect)
                      META_MINIMIZE_ANIMATION_LENGTH);
        break;
 
+    case META_EFFECT_UNMINIMIZE:
+    case META_EFFECT_FOCUS:
+    case META_EFFECT_CLOSE:
+    case META_NUM_EFFECTS:
+      break;
+
     default:
        break;
     }