fix: cache disabling should stick when toggling request interception (#4260)

This patch:
- refactors `NetworkManager`/`FrameManager` so that they enable all the
relevant domains themselves. This is a preparation for OOPIF support and
migration onto fetch domain.
- moves `networkManager` ownership into `FrameManager`. This way it's clear who owns what.
- stops enabling Security domain: it saves quite some traffic over
websocket since it no longer sends annoying "SecurityStateChanged" events.
Instead, use `Security.setIgnoreCertificateErrors` method.
- consolidates network cache state in network manager. This even fixes a
bug with caching and request interception interop.

lib/LifecycleWatcher.js

@@ -37,7 +37,6 @@ class LifecycleWatcher {
     });
 
     this._frameManager = frameManager;
-    this._networkManager = frameManager._networkManager;
     this._frame = frame;
     this._initialLoaderId = frame._loaderId;
     this._timeout = timeout;
@@ -48,7 +47,7 @@ class LifecycleWatcher {
       helper.addEventListener(this._frameManager, Events.FrameManager.LifecycleEvent, this._checkLifecycleComplete.bind(this)),
       helper.addEventListener(this._frameManager, Events.FrameManager.FrameNavigatedWithinDocument, this._navigatedWithinDocument.bind(this)),
       helper.addEventListener(this._frameManager, Events.FrameManager.FrameDetached, this._onFrameDetached.bind(this)),
-      helper.addEventListener(this._networkManager, Events.NetworkManager.Request, this._onRequest.bind(this)),
+      helper.addEventListener(this._frameManager.networkManager(), Events.NetworkManager.Request, this._onRequest.bind(this)),
     ];
 
     this._sameDocumentNavigationPromise = new Promise(fulfill => {