Merge "Use highp to avoid float overflow in expression"

                                    return color * slope;

                                } else if (nits < x1) {

                                    // scale [x0, x1] to [y0, y1] linearly

                                    float slope = (y1 - y0) / (x1 - x0);

                                    // Use highp since some compilers may do this

                                    // operation as reciprocal multiplication with

                                    // re-association that could exceed the range

                                    // of mediump float.

                                    highp float slope = (y1 - y0) / (x1 - x0);

                                    nits = y0 + (nits - x0) * slope;

                                } else if (nits < x2) {

                                    // scale [x1, x2] to [y1, y2] using Hermite interp