AddIfMissing       40 chrome/common/extensions/value_counter.h   int AddIfMissing(const base::Value& value);
AddIfMissing       40 chrome/common/extensions/value_counter_unittest.cc   ASSERT_EQ(1, vc.AddIfMissing(value));
AddIfMissing       41 chrome/common/extensions/value_counter_unittest.cc   ASSERT_EQ(1, vc.AddIfMissing(value));