disable some chrome unused features (#939)

package.json

@@ -101,7 +101,7 @@
     "request": "^2.83",
     "retry-promise": "^1.0",
     "rx-queue": "^0.1",
-    "rxjs": "^5.4",
+    "rxjs": "^5.5",
     "state-switch": "^0.2",
     "watchdog": "^0.3",
     "ws": "^3.2",

src/puppet-web/bridge.ts

@@ -111,8 +111,15 @@ export class Bridge extends EventEmitter {
     const browser = await launch({
       headless,
       args: [
+        '--audio-output-channels=0',
+        '--disable-default-apps',
+        '--disable-extensions',
+        '--disable-translate',
         '--disable-gpu',
         '--disable-setuid-sandbox',
+        '--disable-sync',
+        '--hide-scrollbars',
+        '--mute-audio',
         '--no-sandbox',
       ],
     })