https://bugs.webkit.org/show_bug.cgi?id=126859

Reviewed by Anders Carlsson.

Source/WebCore:

* config.h: Use PLATFORM(COCOA) instead of PLATFORM(MAC) || PLATFORM(IOS)
to set USE(FILE_LOCK). Would be nice to use OS(DARWIN), but that would be
a change in behavior that might be incorrect. Removed bogus comments in
the USE(NEW_THEME) setting code. Removed redundant code to set USE(CA),
which exactly duplicates code that already exists in Platform.h.

Source/WTF:

* wtf/Platform.h: Added PLATFORM(COCOA), which for now is set at exactly the same
times that PLATFORM(MAC) is. Added USE(FOUNDATION), which is set at the same times
that PLATFORM(COCOA) is. Re-organize the PLATFORM(MAC) and PLATFORM(IOS) settings
in the header so they are a bit easier to read. Put HAVE_LANGINFO_H in with the
rest of the OS(UNIX) settings and put HAVE_READLINE in with the rest of the
OS(DARWIN) settings. Tweak formatting a bit.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161853 268f45cc-cd09-0410-ab3c-d52691b4dbfc