feat(Chromium): roll Chromium to r548690 (puppeteer#2323)

This roll includes:
- https://crrev.com/548598 - DevTools: implement Page.setBypassCSP method
- https://crrev.com/548690 - DevTools: introduce Page.navigatedWithinDocument event

References puppeteer#1229, puppeteer#257.

package.json

@@ -36,7 +36,7 @@
     "ws": "^3.0.0"
   },
   "puppeteer": {
-    "chromium_revision": "548153"
+    "chromium_revision": "548921"
   },
   "devDependencies": {
     "@types/debug": "0.0.30",