Bug 1628460 - Turn off qpack dynamic table. r=michal

Differential Revision: https://phabricator.services.mozilla.com/D70244

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

mobile/android/app/mobile.js

@@ -99,7 +99,7 @@ pref("network.http.spdy.push-allowance", 32768);
 pref("network.http.spdy.default-hpack-buffer", 4096); // 4k
 
 // http3
-pref("network.http.http3.default-qpack-table-size", 4096); // 4k
+pref("network.http.http3.default-qpack-table-size", 0);
 
 // See bug 545869 for details on why these are set the way they are
 pref("network.buffer.cache.count", 24);

modules/libpref/init/all.js

@@ -1480,7 +1480,7 @@ pref("network.http.spdy.enable-hpack-dump", false);
 // Http3 parameters
 pref("network.http.http3.enabled", false);
 // Http3 qpack table size.
-pref("network.http.http3.default-qpack-table-size", 65536); // 64k
+pref("network.http.http3.default-qpack-table-size", 0);
 // Maximal number of streams that can be blocked on waiting for qpack
 // instructions.
 pref("network.http.http3.default-max-stream-blocked", 10);