Rename gfx::Display/Screeen to display::Display/Screen in ui/aura/test
Rename gfx::Display/Screeen to display::Display/Screen in ui/aura/test

BUG=597761
TBR=sadrul@chromium.org

Review-Url: https://codereview.chromium.org/1934013003
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#390817}

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