[gnome-shell] recorder: Don't compute the buffer size twice

[Adel Gadllah <agadllah src gnome org>]

commit 985e909876a8ac02a139d07c9190e3a1ff589eef
Author: Adel Gadllah <adel gadllah gmail com>
Date:   Sun Jan 11 15:42:18 2015 +0100

    recorder: Don't compute the buffer size twice

 src/shell-recorder.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/shell-recorder.c b/src/shell-recorder.c
index ba1e546..3ff3d3d 100644
--- a/src/shell-recorder.c
+++ b/src/shell-recorder.c
@@ -437,7 +437,7 @@ recorder_record_frame (ShellRecorder *recorder)
 
   size = recorder->area.width * recorder->area.height * 4;
 
-  data = g_malloc (recorder->area.width * 4 * recorder->area.height);
+  data = g_malloc (size);
   cogl_framebuffer_read_pixels (cogl_get_draw_framebuffer (),
                                 recorder->area.x,
                                 recorder->area.y,