[epiphany] Reenable on-demand accelerated compositing

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 6ed116c259940a65577662c34277e7b235bc8466
Author: Michael Catanzaro <mcatanzaro posteo net>
Date:   Sat Jul 20 19:37:15 2019 +0000

    Reenable on-demand accelerated compositing
    
    See #595

 data/org.gnome.epiphany.gschema.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.epiphany.gschema.xml b/data/org.gnome.epiphany.gschema.xml
index b2e082f56..f9612f313 100644
--- a/data/org.gnome.epiphany.gschema.xml
+++ b/data/org.gnome.epiphany.gschema.xml
@@ -249,7 +249,7 @@
                        <description>Keep track of last download directory</description>
                </key>
                <key name="hardware-acceleration-policy" 
enum="org.gnome.Epiphany.EphyPrefsWebHardwareAccelerationPolicy">
-                       <default>'never'</default>
+                       <default>'on-demand'</default>
                        <summary>Hardware acceleration policy</summary>
                        <description>Whether to enable hardware acceleration. Possible values are 
“on-demand”, “always”, and “never”. Hardware acceleration may be required to achieve acceptable performance 
on embedded devices, but increases memory usage requirements and could expose severe hardware-specific 
graphics driver bugs. When the policy is “on-demand”, hardware acceleration will be used only when required 
to display 3D transforms.</description>
                </key>