Rolling in new version of gyp with support for referring to existing

checked in vcproj files.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/118093

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17367 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -26,7 +26,7 @@ deps = {
 
   # TODO(mark): Remove once this has moved into depot_tools.
   "src/tools/gyp":
-    "http://gyp.googlecode.com/svn/trunk@506",
+    "http://gyp.googlecode.com/svn/trunk@507",
 
   "src/v8":
     "http://v8.googlecode.com/svn/trunk@2084",