Update requested state by comparing with source consumer

If the local state and mLastDispatchedState are the same, the logic in
onStateChanged will skip updating the requested state. This could be an
issue, for example, a new focused window requested to hide status bar,
but status bar has already been hidden by the previous focused window,
so the new focused window will never send the requested state to server.
This can easily happen when an immersive activity is re-created due to
the configuration change.

This CL updates the requested state if any visibility within it is not
the same as the requested visibility of the source consumer, while
receiving controls.

Fix: 160854328
Test: atest InsetsControllerTest
Test: Swipe to show transient bars after rotating an immersive activity
Change-Id: I5d9acb1b59252fa80e66070db86b2555764588da