roll gyp 1027:1031

1028: Change how hard_dependencies of static_libraries are computed
1029: Change to the json backend
1030, 1031: make_global_settings support

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7839006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99816 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -95,7 +95,7 @@ deps = {
     (Var("googlecode_url") % "snappy") + "/trunk@37",
 
   "src/tools/gyp":
-    (Var("googlecode_url") % "gyp") + "/trunk@1027",
+    (Var("googlecode_url") % "gyp") + "/trunk@1031",
 
   "src/v8":
     (Var("googlecode_url") % "v8") + "/trunk@" + Var("v8_revision"),