C:\cygwin\home\buildbot\slave\win-release\build\Source\WebCore\page\EventHandler.cpp(2285): error C2440: 'return': cannot convert from 'initializer list' to 'WebCore::EventHandler::DragTargetResponse' [C:\cygwin\home\buildbot\slave\win-release\build\WebKitBuild\Release\Source\WebCore\WebCore.vcxproj] C:\cygwin\home\buildbot\slave\win-release\build\Source\WebCore\page\EventHandler.cpp(2285): note: No constructor could take the source type, or constructor overload resolution was ambiguous
Created attachment 323184 [details] Patch
Hmm, the patch stuck in the Win EWS queue behind 11 other commits :/ Going to just land this now as a speculative fix. Hopefully it addresses the build failure...
Fixed by r223050 and r223054.