Consolidate code handling/testing peripheral clicks

* Move OnPeripheralClickListener to components/browser_ui/util/motion
* Add MotionEventTestUtils for creating MotionEvent and MotionEventInfo
  in tests.

After this change, components/browser_ui/util/motion will have:
  * OnPeripheralClickListener:
      an OnTouchListener that intercepts peripheral clicks;
  * MotionEventInfo:
      a plain old data class that contains motion event info;
  * MotionEventTestUtils:
      utils to create MotionEvent and MotionEventInfo for tests.

Bug: 419119645
Change-Id: I37ad2bf83d2870ed2ca6c881332e534741701dbf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6572132
Reviewed-by: Sky Malice <skym@chromium.org>
Reviewed-by: Neil Coronado <nemco@google.com>
Commit-Queue: Linyu He <linyuh@google.com>
Cr-Commit-Position: refs/heads/main@{#1463680}