Remove unsupported parameters by the unified gesture detector from Gesture Configuration.

ui/events/gestures/gesture_configuration.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/gestures/gesture_configuration.h"
 
 namespace ui {
 
 int GestureConfiguration::default_radius_ = 25;
 int GestureConfiguration::fling_max_cancel_to_down_time_in_ms_ = 400;
 int GestureConfiguration::fling_max_tap_gap_time_in_ms_ = 200;
 float GestureConfiguration::fling_velocity_cap_ = 17000.0f;
 int GestureConfiguration::tab_scrub_activation_delay_in_ms_ = 200;
 double GestureConfiguration::long_press_time_in_seconds_ = 1.0;
 double GestureConfiguration::semi_long_press_time_in_seconds_ = 0.4;
 double GestureConfiguration::max_distance_for_two_finger_tap_in_pixels_ = 300;
-int GestureConfiguration::max_radius_ = 100;
 double GestureConfiguration::max_seconds_between_double_click_ = 0.7;
 double
   GestureConfiguration::max_separation_for_gesture_touches_in_pixels_ = 150;
 float GestureConfiguration::max_swipe_deviation_angle_ = 20;
 double
   GestureConfiguration::max_touch_down_duration_in_seconds_for_click_ = 0.8;
 double GestureConfiguration::max_touch_move_in_pixels_for_click_ = 15;
 double GestureConfiguration::max_distance_between_taps_for_double_tap_ = 20;
 double GestureConfiguration::min_distance_for_pinch_scroll_in_pixels_ = 20;
-double GestureConfiguration::min_flick_speed_squared_ = 550.f * 550.f;
 double GestureConfiguration::min_pinch_update_distance_in_pixels_ = 5;
-double GestureConfiguration::min_rail_break_velocity_ = 200;
-double GestureConfiguration::min_scroll_delta_squared_ = 4 * 4;
 float GestureConfiguration::min_scroll_velocity_ = 30.0f;
 double GestureConfiguration::min_swipe_speed_ = 20;
-double GestureConfiguration::scroll_prediction_seconds_ = 0.03;
-double
-  GestureConfiguration::min_touch_down_duration_in_seconds_for_click_ = 0.01;
 
 // If this is too small, we currently can get single finger pinch zoom. See
 // crbug.com/357237 for details.
 int GestureConfiguration::min_scaling_span_in_pixels_ = 125;
 
 // The number of points used in the linear regression which determines
 // touch velocity. Velocity is reported for 2 or more touch move events.
 int GestureConfiguration::points_buffered_for_velocity_ = 8;

[tdresser, 2014/09/12 17:00:01]

points_buffered_for_velocity_ isn't used anywhere, is it?

(Are there any others?)

-double GestureConfiguration::rail_break_proportion_ = 15;
-double GestureConfiguration::rail_start_proportion_ = 2;
 int GestureConfiguration::show_press_delay_in_ms_ = 150;
 
 // TODO(jdduke): Disable and remove entirely when issues with intermittent
 // scroll end detection on the Pixel are resolved, crbug.com/353702.
 #if defined(OS_CHROMEOS)
 int GestureConfiguration::scroll_debounce_interval_in_ms_ = 30;
 #else
 int GestureConfiguration::scroll_debounce_interval_in_ms_ = 0;
 #endif
 
 // Coefficients for a function that computes fling acceleration.
 // These are empirically determined defaults. Do not adjust without
 // additional empirical validation.
 float GestureConfiguration::fling_acceleration_curve_coefficients_[
     NumAccelParams] = {
   0.0166667f,
   -0.0238095f,
   0.0452381f,
   0.8f
 };
 
 }  // namespace ui