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per-window-scale: turn the feature on by default on Linux

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This makes the per-surface scaling path be taken iff:

1. Ozone/wayland is running
2. Viewporter-based fractional scaling is supported and enabled
3. WaylandPerSurfaceScale feature hasn't been explicitly turned off (by
   the user)

Further details in the design doc:
https://docs.google.com/document/d/1MwvHLrGl5DmODVwt8_iyHEzrn7B5JqC_ABoDP2KUxb0

Bug: 336007385, 40083534
Change-Id: Ib54743717ff98ef4a9ef423fc35679be5458ce8c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5598721
Reviewed-by: Peter Boström <pbos@chromium.org>
Reviewed-by: Kramer Ge <fangzhoug@chromium.org>
Commit-Queue: Nick Yamane <nickdiego@igalia.com>
Cr-Commit-Position: refs/heads/main@{#1420907}
This commit is contained in:
Nick Diego Yamane
2025-02-16 21:11:21 -08:00
committed by Chromium LUCI CQ
parent 53e3b5ed4c
commit 49526217ec
1 changed files with 6 additions and 1 deletions

7
ui/base/ui_base_features.cc

@ -119,7 +119,12 @@ BASE_FEATURE(kWaylandLinuxDrmSyncobj,
// Controls whether support for Wayland's per-surface scaling is enabled.
BASE_FEATURE(kWaylandPerSurfaceScale,
"WaylandPerSurfaceScale",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_LINUX)
base::FEATURE_ENABLED_BY_DEFAULT
#else
base::FEATURE_DISABLED_BY_DEFAULT
#endif // BUILDFLAG(IS_LINUX)
);
// Controls whether Wayland text-input-v3 protocol support is enabled.
BASE_FEATURE(kWaylandTextInputV3,