Bug 1010104 - [Dialer][Call Screen] Baseline of the contact name when applying the fluid font size

You can move this block back to ```getScenario()```. Since it can be SECOND_INCOMING_CALL, you could write it like this:
```js
var scenario = CallScreen.getScenario();
// explain me
if (scenario === FontSizeManager.CALL_WAITING && this.call.state === 'incoming' && CallScreen.incomingContainer.classList.contains('displayed')) {
  scenario = FontSizeManager.SECOND_INCOMING_CALL;
}
FontSizeManager.adaptToSpace(...);
```