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Summary: hit-testing for the horizontal scroll bar of an overflow is off by by the width of the top border.
To reproduce: open the testcase. The horizontal scrollbar doesn't respond to clicking and dragging.
Clicking inside the blue rect just below the scrollbar gives this error in the console (if running a debug
build): ERROR: KHTML says we hit a RenderWidget, but AppKit doesn't agree we hit
the corresponding NSView.
I have a patch, but like with bug 5829, I don't know how to make an automated test.
Created an attachment (id=5152) [details]
Created an attachment (id=5153) [details]
Remove borderTop() from horizontal scrollbar rect computation
Removing keyword(s) cause bug is closed.
Removing keyword(s) since bug is fixed.
Removing Regression keyword from bugs already fixed.