Increase limit for snapshot size test

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/15821018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15090 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/test-mark-compact.cc

@@ -557,7 +557,7 @@ TEST(BootUpMemoryUse) {
       }
     } else {                            // 32-bit.
       if (v8::internal::Snapshot::IsEnabled()) {
-        CHECK_LE(delta, 2900 * 1024);
+        CHECK_LE(delta, 2910 * 1024);
       } else {
         CHECK_LE(delta, 3400 * 1024);
       }