Bug 150394, contains a patch that loads the OS/2 table as follows:
CFDataRef os2Table = CGFontCopyTableForTag(m_platformData.cgFont(), 'OS/2')
Here 'OS/2' is a character literal (32 bit integer) used as a tag representing the TrueType table. The slash is not used as an operator, however check-webkit-style complains with the following message:
ERROR: Source/WebCore/platform/graphics/cocoa/FontCocoa.mm:179: Missing spaces around / [whitespace/operators] 
Created attachment 263979 [details]
Note that the 'OS/2' case is already in the source code:
Comment on attachment 263979 [details]
Could you please add a new unittest covers this change?
(In reply to comment #3)
> Comment on attachment 263979 [details]
> Could you please add a new unittest covers this change?
Sorry, please ignore this comment.
Committed r191538: <http://trac.webkit.org/changeset/191538>