Fix build.

ThreadableLoaderClientWrapper was still calling didReceiveCachedMetadata; I didn't notice it
because the file was not in the Xcode project so I went ahead and added it.

* WebCore.xcodeproj/project.pbxproj:
* loader/ThreadableLoaderClientWrapper.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147840 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Another build fix.

Actually remove the right files from WebCore.vcxproj.

* WebCore.vcxproj/WebCore.vcxproj:
* WebCore.vcxproj/WebCore.vcxproj.filters:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147841 268f45cc-cd09-0410-ab3c-d52691b4dbfc