Wire the provider to the content element and the ad UI container.
Called once before the first requestAds.
Content reached its end (so VMAP postrolls fire).
Request ads for the item's config. autostart carries the content's
autoplay intent: false = hold the break until startPendingBreak().
The player/container was resized (fullscreen, layout).
Start a loaded-but-held break. True if one was started.
SPI for a client-side ads integration (Google IMA HTML5, future slot providers) — the web mirror of the mobile
AdsProviderSPI. Opt-in: apps that never touch ads load none of this.