Remove old Aura Gesture Detection Pipeline.

content/browser/renderer_host/input/touch_event_queue.cc

Index: content/browser/renderer_host/input/touch_event_queue.cc
diff --git a/content/browser/renderer_host/input/touch_event_queue.cc b/content/browser/renderer_host/input/touch_event_queue.cc
index 03cadad18e249ced4f35789703df4f27c2f7ebc7..6d3dd976c806702dfff5ee4bdaa4af800b21da88 100644
--- a/content/browser/renderer_host/input/touch_event_queue.cc
+++ b/content/browser/renderer_host/input/touch_event_queue.cc
@@ -328,7 +328,6 @@ class CoalescedWebTouchEvent {
 
 TouchEventQueue::Config::Config()
     : touchmove_slop_suppression_length_dips(0),
-      touchmove_slop_suppression_region_includes_boundary(true),
       touch_scrolling_mode(TOUCH_SCROLLING_MODE_DEFAULT),
       touch_ack_timeout_delay(base::TimeDelta::FromMilliseconds(200)),
       touch_ack_timeout_supported(false) {
@@ -342,14 +341,11 @@ TouchEventQueue::TouchEventQueue(TouchEventQueueClient* client,
       touch_filtering_state_(TOUCH_FILTERING_STATE_DEFAULT),
       ack_timeout_enabled_(config.touch_ack_timeout_supported),
       touchmove_slop_suppressor_(new TouchMoveSlopSuppressor(
-          config.touchmove_slop_suppression_length_dips +
-          (config.touchmove_slop_suppression_region_includes_boundary
-               ? kSlopEpsilon
-               : -kSlopEpsilon))),
+          config.touchmove_slop_suppression_length_dips + kSlopEpsilon)),
       send_touch_events_async_(false),
       needs_async_touchmove_for_outer_slop_region_(false),
       last_sent_touch_timestamp_sec_(0),
-  touch_scrolling_mode_(config.touch_scrolling_mode) {
+      touch_scrolling_mode_(config.touch_scrolling_mode) {
   DCHECK(client);
   if (ack_timeout_enabled_) {
     timeout_handler_.reset(