[Android] Support double-tap selection

ui/events/gesture_detection/gesture_configuration.cc

 // Copyright 2014 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/gesture_detection/gesture_configuration.h"
 
 namespace ui {
 namespace {
 
 GestureConfiguration* instance = nullptr;
@@ skipping 17 matching lines @@
     : default_radius_(25),
       double_tap_enabled_(false),
       double_tap_timeout_in_ms_(400),
       fling_touchpad_tap_suppression_enabled_(false),
       fling_touchscreen_tap_suppression_enabled_(false),
       fling_max_cancel_to_down_time_in_ms_(400),
       fling_max_tap_gap_time_in_ms_(200),
       gesture_begin_end_types_enabled_(false),
       long_press_time_in_ms_(1000),
       max_distance_between_taps_for_double_tap_(20),
+      max_tap_count_(3),
       max_distance_for_two_finger_tap_in_pixels_(300),
       max_fling_velocity_(17000.0f),
       max_gesture_bounds_length_(0),
       max_separation_for_gesture_touches_in_pixels_(150),
       max_swipe_deviation_angle_(20),
       max_time_between_double_click_in_ms_(700),
       max_touch_down_duration_for_click_in_ms_(800),
       max_touch_move_in_pixels_for_click_(15),
       min_distance_for_pinch_scroll_in_pixels_(20),
       min_fling_velocity_(30.0f),
@@ skipping 20 matching lines @@
       swipe_enabled_(false),
       tab_scrub_activation_delay_in_ms_(200),
       two_finger_tap_enabled_(false),
       velocity_tracker_strategy_(VelocityTracker::Strategy::STRATEGY_DEFAULT) {
 }
 
 GestureConfiguration::~GestureConfiguration() {
 }
 
 }  // namespace ui