[freezing] Track Hid and Serial port connections in Performance Manager.

This is needed to implement a freezing opt-out as described at
go/tab-freezing-on-energy-saver-prd.


Implementation details:

- WebContentsObserver::OnIsConnectedToUsbDeviceChanged() and
  WebContentsObserver::OnIsConnectedToBluetoothDeviceChanged() are
  replaced with
  WebContentsObserver::OnDeviceConnectionTypesChanged(), which is
  invoked when the connection types used by a WebContents change
  (USB, Bluetooth, HID and serial). This avoids an explosion of the
  number of observer methods as more device connection types need
  to be tracked by performance policies.

- Hid Device and Serial Port usage are tracked in
  PageLiveStateDecorator, alongside USB Device and Bluetooth device
  usage.

- In a separate CL, we'll use the new properties as Page Freezing
  opt-outs.

Bug: 325954772
Change-Id: I5d9df041f7cb45309f3eb69cb9b6ad59f35d64b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5847688
Reviewed-by: Matt Reynolds <mattreynolds@chromium.org>
Reviewed-by: Patrick Monette <pmonette@chromium.org>
Commit-Queue: Francois Pierre Doray <fdoray@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1356468}