pi_               285 tools/imagediff/image_diff_png.cc   PngReadStructDestroyer(png_struct** ps, png_info** pi) : ps_(ps), pi_(pi) {
pi_               324 ui/gfx/codec/png_codec.cc   PngReadStructDestroyer(png_struct** ps, png_info** pi) : ps_(ps), pi_(pi) {
pi_               339 ui/gfx/codec/png_codec.cc   explicit PngWriteStructDestroyer(png_struct** ps) : ps_(ps), pi_(0) {