GL_PALETTE4_R5_G6_B5_OES   32 ppapi/lib/gl/include/GLES2/gl2ext.h #define GL_PALETTE4_R5_G6_B5_OES                                0x8B92
GL_PALETTE4_R5_G6_B5_OES  188 third_party/khronos/GLES2/gl2ext.h #define GL_PALETTE4_R5_G6_B5_OES          0x8B92