fix: focus the webview as a temp workaround

spec/webview-spec.js

@@ -956,6 +956,11 @@ describe('<webview> tag', function () {
       webview.addEventListener('did-finish-load', listener2)
       webview.src = `file://${fixtures}/pages/content.html`
       document.body.appendChild(webview)
+      // TODO(deepak1556): With https://codereview.chromium.org/2836973002
+      // focus of the webContents is required when triggering the api.
+      // Remove this workaround after determining the cause for
+      // incorrect focus.
+      webview.focus()
     })
   })