Backed out changeset 2e6cbbc4c53e (bug 1452146) for causing leaks on a CLOSED TREE

modules/libpref/init/StaticPrefList.h

@@ -1103,17 +1103,11 @@ VARCACHE_PREF(
 )
 #undef PREF_VALUE
 
-#if defined(XP_WIN) || defined(XP_MACOSX)
-# define PREF_VALUE true
-#else
-# define PREF_VALUE false
-#endif
 VARCACHE_PREF(
   "media.rdd-process.enabled",
    MediaRddProcessEnabled,
-  RelaxedAtomicBool, PREF_VALUE
+  RelaxedAtomicBool, false
 )
-#undef PREF_VALUE
 
 VARCACHE_PREF(
   "media.rdd-process.startup_timeout_ms",
@@ -1424,17 +1418,11 @@ VARCACHE_PREF(
 )
 
 // AV1
-#if defined(XP_WIN) || defined(XP_MACOSX)
-# define PREF_VALUE true
-#else
-# define PREF_VALUE false
-#endif
 VARCACHE_PREF(
   "media.av1.enabled",
    MediaAv1Enabled,
-  RelaxedAtomicBool, PREF_VALUE
+  RelaxedAtomicBool, false
 )
-#undef PREF_VALUE
 VARCACHE_PREF(
   "media.av1.use-dav1d",
    MediaAv1UseDav1d,

modules/libpref/init/all.js

@@ -642,11 +642,7 @@ pref("media.cubeb.sandbox", false);
 #endif
 
 #ifdef MOZ_AV1
-#if defined(XP_MACOSX) || defined(XP_WIN)
-pref("media.av1.enabled", true);
-#else
 pref("media.av1.enabled", false);
-#endif
 // Use libdav1d instead of libaom
 pref("media.av1.use-dav1d", false);
 #endif