[epiphany] Disable hardware acceleration

[Michael Catanzaro <mcatanzaro src gnome org>]

commit c61da877a515d61e3e7d0d75ab8a8b33f89f87f7
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Thu Apr 5 14:51:54 2018 -0500

    Disable hardware acceleration
    
    Let's see what this breaks. I'm suspecting we'll be seeing fewer
    complaints, rather than more.

 embed/ephy-embed-prefs.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/embed/ephy-embed-prefs.c b/embed/ephy-embed-prefs.c
index 0ce447f..332502a 100644
--- a/embed/ephy-embed-prefs.c
+++ b/embed/ephy-embed-prefs.c
@@ -431,6 +431,7 @@ ephy_embed_prefs_init (gpointer user_data)
                                                        "enable-fullscreen", TRUE,
                                                        "enable-javascript", TRUE,
                                                        "enable-dns-prefetching", TRUE,
+                                                       "hardware-acceleration-policy", 
WEBKIT_HARDWARE_ACCELERATION_POLICY_ON_DEMAND,
                                                        "javascript-can-open-windows-automatically", TRUE,
                                                        NULL);