[Webkit-unassigned] [Bug 126515] New: The attribute 'size' of 'select' element doesn't work when size=2 or 3.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=126515

           Summary: The attribute 'size' of 'select' element doesn't work
                    when size=2 or 3.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: changseok.oh at collabora.com


When the size attribute of select tag has 2 or 3. it's working properly. it works like 'size=4'.
Firefox is working with little regard to size=2/3.
As my investigation, this is because minSize in RenderListBox.cpp is limited to 4. 
I can guess there has been a historical reason there with the following comment. but I doubt if it's still valid now.
> // The minSize constant was originally defined to render scrollbars correctly
> // This might vary for different platforms.

I couldn't find any problem for Macport running on Marvericks and Lion. The scrollbar shows up and automatically hide after few seconds on the platforms.
And also I don't think GTK port has any problem for size=2/3, though GTK+ 3.0 doesn't paint scrollbar for such a short list, but it presents more lists remained by using up/down arrow indicators.

I propose to change minSize from 4 to 2.

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