[Android] Support double-tap selection

ui/events/gesture_detection/gesture_provider_config_helper.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_provider_config_helper.h"
 
 #include "ui/events/gesture_detection/gesture_configuration.h"
 #include "ui/gfx/screen.h"
 
 namespace ui {
@@ skipping 23 matching lines @@
   config.maximum_fling_velocity = gesture_config.max_fling_velocity();
   config.swipe_enabled = gesture_config.swipe_enabled();
   config.minimum_swipe_velocity = gesture_config.min_swipe_velocity();
   config.maximum_swipe_deviation_angle =
       gesture_config.max_swipe_deviation_angle();
   config.two_finger_tap_enabled = gesture_config.two_finger_tap_enabled();
   config.two_finger_tap_max_separation =
       gesture_config.max_distance_for_two_finger_tap_in_pixels();
   config.two_finger_tap_timeout = base::TimeDelta::FromMilliseconds(
       gesture_config.max_touch_down_duration_for_click_in_ms());
+  config.single_tap_repeat_length = gesture_config.max_tap_count();
   config.velocity_tracker_strategy = gesture_config.velocity_tracker_strategy();
   return config;
 }
 
 ScaleGestureDetector::Config BuildScaleGestureDetectorConfig(
     const GestureConfiguration& gesture_config) {
   ScaleGestureDetector::Config config;
   config.span_slop = gesture_config.span_slop();
   config.min_scaling_touch_major = gesture_config.min_scaling_touch_major();
   config.min_scaling_span = gesture_config.min_scaling_span_in_pixels();
@@ skipping 36 matching lines @@
 
   gfx::Screen* screen = gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE);
   // |screen| is sometimes NULL during tests.
   if (screen)
     config.display = screen->GetPrimaryDisplay();
 
   return config;
 }
 
 }  // namespace ui