CBU16_IS_LEAD     358 base/third_party/icu/icu_utf.h     if(CBU16_IS_LEAD(c)) { \
CBU16_IS_LEAD      14 ui/gfx/utf16_indexing.cc     !(CBU16_IS_TRAIL(s[index]) && CBU16_IS_LEAD(s[index - 1]));