Merge "don't use legacy postTranslate255"

                    // Simple scale/translate case where R, G, and B are all treated equivalently

                    SkColorMatrix cm;

                    cm.setScale(1.1f, 1.1f, 1.1f, 0.5f);

                    cm.postTranslate255(5.0f, 5.0f, 5.0f, 10.0f);

                    cm.postTranslate(5.0f/255, 5.0f/255, 5.0f/255, 10.0f/255);

                    paint.setColorFilter(SkColorFilters::Matrix(cm));