Chris Bracken 679e34a3e3 Eliminate hardcoded scale factor in a11y scroll (flutter/engine#30013) ...

When performing an accessibilty scroll, the default scroll distance is
kSmallScrollIncrement (40 pixels). This value is then multiplied by the
system scale factor, as set in the display settings drop-down in the Windows
system settings.

When we imported the AX tree from Chromium, we hard-coded the system
scale factor to 1.0 due to a fair amount of abstraction of the scale
factor lookup in their code. This fills it back in.

Issue: https://github.com/flutter/flutter/issues/78798

2021-12-01 12:32:32 -08:00

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src/flutter

Eliminate hardcoded scale factor in a11y scroll (flutter/engine#30013)

2021-12-01 12:32:32 -08:00