Rename IsWindowMinimized to IsWindowOnScreen

As discussed in change
https://chromium-review.googlesource.com/c/external/webrtc/+/634043, the name of
IsWindowMinimized() functions is too confusing. IsWindowOnScreen() is preferred,
since it describes the behavior of the functions more accurately.

This change does not flip the default behavior of these functions to avoid a
behavior change. TODO has been added; and the flipping will happen in a
following change.

Bug: chromium:758554
Change-Id: I009c0fa57142756e5c83f76b2a3561253db1b67f
Reviewed-on: https://chromium-review.googlesource.com/641814
Commit-Queue: Zijie He <zijiehe@chromium.org>
Reviewed-by: Jamie Walch <jamiewalch@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#19613}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: f7f685c9de873df2a378726d7570638477776811
3 files changed