Ozone: Replace usage of 'master' with the equivalent 'HEAD'.

'HEAD' will work when 'master' is renamed to 'main'.

Change-Id: Ib59537426e942fcc7ff879c65d6c2eafbff98d69
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2523391
Auto-Submit: James Hawkins <jhawkins@chromium.org>
Commit-Queue: Robert Kroeger <rjkroege@chromium.org>
Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825018}

ui/events/ozone/evdev/touch_filter/palm_detection_filter_factory.h

@@ -32,7 +32,7 @@ std::vector<float> ParseRadiusPolynomial(const std::string& radius_string);
 // Returns either an empty string or a comma separated floating point numbers,
 // used in transforming touch_major/touch_minor radius. The parsed numbers are
 // used as described in:
-// https://source.chromium.org/chromium/chromium/src/+/master:ui/events/ozone/evdev/touch_filter/neural_stylus_palm_detection_filter_model.h;l=63
+// https://source.chromium.org/chromium/chromium/src/+/HEAD:ui/events/ozone/evdev/touch_filter/neural_stylus_palm_detection_filter_model.h;l=63
 COMPONENT_EXPORT(EVDEV)
 std::string FetchNeuralPalmRadiusPolynomial(const EventDeviceInfo& devinfo,
                                             const std::string param_string);