Bug 1471535 - pt5 - Add prefs media.rdd-process.enabled and media.rdd-process.startup_timeout_ms. r=jya

Depends on D8486

Differential Revision: https://phabricator.services.mozilla.com/D8487

--HG--
extra : moz-landing-system : lando

modules/libpref/init/StaticPrefList.h

@@ -1060,6 +1060,18 @@ VARCACHE_PREF(
 )
 #undef PREF_VALUE
 
+VARCACHE_PREF(
+  "media.rdd-process.enabled",
+   MediaRddProcessEnabled,
+  RelaxedAtomicBool, false
+)
+
+VARCACHE_PREF(
+  "media.rdd-process.startup_timeout_ms",
+   MediaRddProcessStartupTimeoutMs,
+  RelaxedAtomicInt32, 5000
+)
+
 #ifdef ANDROID
 
 // Enable the MediaCodec PlatformDecoderModule by default.