The GetGlyph function returns a boolean indicating whether the glyph exists in the font. However, we were testing the pointer, so the test would always succeed even if the glyph was missing. This interfered with fallback algorithms for rendering compatibility characters. Bug: 15816880 Bug: 16856221 Change-Id: I95cd45bb8f5e8ddf74cf23e6e624fbf30172e00a