Change the sourceforge url for site_config defaults
Change the sourceforge url for site_config defaults

Update sourceforge SVN checkout URL from that old 1.6.9 SVN server to the new 1.7.7 SVN server URL

BUG=275757

Review URL: https://chromiumcodereview.appspot.com/23364005

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@218851 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build