Merge to XFA: Fix a leak with g_DefaultGlobalObjectTemplate.

As seen when running FXJSV8Embeddertest.Getters.

TBR=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1380993003 .

(cherry picked from commit eda27bd13270f5324ce3caa34a09a40cffc4026f)

Review URL: https://codereview.chromium.org/1391843005 .
1 file changed