[chromium] rename webkit_resources

https://bugs.webkit.org/show_bug.cgi?id=95874

Reviewed by James Robinson.

* DumpRenderTree/DumpRenderTree.gyp/DumpRenderTree.gyp:

git-svn-id: svn://svn.chromium.org/blink/trunk@128232 bbb929c8-8fbe-4397-9dbb-9b2b20218538