* DumpRenderTree/DumpRenderTree.m: Instead of allocating a single local
pasteboard, allocate any number of local pasteboards.
(main): Allocate the dictionary of pasteboards.
(+[DumpRenderTreePasteboard _pasteboardWithName:]): Allocate a pasteboard,
given a name.
(+[LocalPasteboard alloc]): Added, so we don't have to call NSAllocateObject
explicitly elsewhere.
(-[LocalPasteboard addTypes:owner:]): Added a check that the owner responds
to the selector rather than calling unconditionally.
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@17480
268f45cc-cd09-0410-ab3c-
d52691b4dbfc