Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

42.0.0-beta.6

What operating system(s) are you using?

Windows

Operating System Version

Windows 10

What arch are you using?

x64

Last Known Working Electron version

No response

Does the issue also appear in Chromium / Google Chrome?

I don't know how to test

Expected Behavior

When a window changes its scaling, the resize handle size should grow/shrink with the scaling.
Window opened with 100% scaling has a resize handle of 8px, when changing the scaling to 150% the resize handle should be 12px

Actual Behavior

Electron only gets the resize handle size initially and does not change it anymore. when changing scale the resize handle size does not update

Testcase Gist URL

No response

Additional Information

Probably related: #50706
const int thickness = ::GetSystemMetrics(SM_CXSIZEFRAME) + ::GetSystemMetrics(SM_CXPADDEDBORDER);
Should maybe GetSystemMetricsForDpi be used? with the current dpi of the window to support multi display setups