GitLab

The notion of "host coordinates" comes from Aura, where it roughly
means "coordinates relative to the Aura root window". This has no
meaning on macOS, so they get instead mapped to window coordinates,
which produces a problem: some tests assume that their *contents
view* is at (0,0) in "host coordinates" (which Aura allows), but on
macOS, the contents of a window aren't at (0,0) in that window unless
it's frameless, and windows aren't at (0,0) in the screen - the WM
won't allow them to be placed there, because they'd underlap the menu
bar.

To avoid that problem, rewrite these tests in terms of screen coords;
these work just fine both on Mac and under Aura.

Bug: 708401
Change-Id: I3cb7db2c957c786c602fce0446d400e0f14f4117
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2118630Reviewed-by: Robert Liao <robliao@chromium.org>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#753200}