Reviewed by Darin Adler.

        Move parseDataUrl() from CURL into own file
        https://bugs.webkit.org/show_bug.cgi?id=41462

        Move the data URL parsing algorithm into a new file to use it in ResourceHandleWin too.

        * CMakeLists.txt:
        * WebCore.gypi:
        * WebCore.vcproj/WebCore.vcproj:
        * platform/network/DataURL.cpp: Added.
        (WebCore::handleDataURL):
        * platform/network/DataURL.h: Added.
        * platform/network/curl/ResourceHandleManager.cpp:
        (WebCore::ResourceHandleManager::dispatchSynchronousJob):
        (WebCore::ResourceHandleManager::startJob):
        * platform/network/win/ResourceHandleWin.cpp:
        (WebCore::ResourceHandle::start):
        (WebCore::ResourceHandle::fileLoadTimer):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@69183 268f45cc-cd09-0410-ab3c-d52691b4dbfc