Re-enabling ClipCache unit test which now runs on Xoom w/ new tool chain

git-svn-id: http://skia.googlecode.com/svn/trunk@3898 2bbb7eff-a529-9590-31e7-b0007b416f81

tests/ClipCacheTest.cpp

@@ -144,7 +144,7 @@ static void test_cache(skiatest::Reporter* reporter, GrContext* context) {
 ////////////////////////////////////////////////////////////////////////////////
 static void TestClipCache(skiatest::Reporter* reporter, GrContext* context) {
 
-//    test_cache(reporter, context);
+    test_cache(reporter, context);
 }
 
 ////////////////////////////////////////////////////////////////////////////////