Remove old Aura Gesture Detection Pipeline.

content/browser/renderer_host/input/touch_event_queue.cc

 // Copyright 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 "content/browser/renderer_host/input/touch_event_queue.h"
 
 #include "base/auto_reset.h"
 #include "base/debug/trace_event.h"
 #include "base/stl_util.h"
 #include "content/browser/renderer_host/input/timeout_monitor.h"
@@ skipping 174 matching lines @@
   // Provides timeout-based callback behavior.
   TimeoutMonitor timeout_monitor_;
 };
 
 // Provides touchmove slop suppression for a single touch that remains within
 // a given slop region, unless the touchstart is preventDefault'ed.
 // TODO(jdduke): Use a flag bundled with each TouchEvent declaring whether it
 // has exceeded the slop region, removing duplicated slop determination logic.
 class TouchEventQueue::TouchMoveSlopSuppressor {
  public:
-  TouchMoveSlopSuppressor(double slop_suppression_length_dips,
-                          double slop_suppression_region_includes_boundary)
+  TouchMoveSlopSuppressor(double slop_suppression_length_dips)
       : slop_suppression_length_dips_squared_(0),
         suppressing_touchmoves_(false) {
     if (slop_suppression_length_dips) {
-      slop_suppression_length_dips += slop_suppression_region_includes_boundary
-                                          ? kSlopEpsilon
-                                          : -kSlopEpsilon;
+      slop_suppression_length_dips += kSlopEpsilon;
       slop_suppression_length_dips_squared_ =
           slop_suppression_length_dips * slop_suppression_length_dips;
     }
   }
 
   bool FilterEvent(const WebTouchEvent& event) {
     if (WebTouchEventTraits::IsTouchSequenceStart(event)) {
       touch_sequence_start_position_ =
           gfx::PointF(event.touches[0].position);
       suppressing_touchmoves_ = slop_suppression_length_dips_squared_ != 0;
@@ skipping 116 matching lines @@
   // This is the list of the original events that were coalesced, each requiring
   // future ack dispatch to the client.
   typedef std::vector<TouchEventWithLatencyInfo> WebTouchEventWithLatencyList;
   WebTouchEventWithLatencyList events_to_ack_;
 
   DISALLOW_COPY_AND_ASSIGN(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) {
 }
 
 TouchEventQueue::TouchEventQueue(TouchEventQueueClient* client,
                                  const Config& config)
     : client_(client),
       dispatching_touch_ack_(NULL),
       dispatching_touch_(false),
       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)),
+          config.touchmove_slop_suppression_length_dips)),
       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) {
   DCHECK(client);
   if (ack_timeout_enabled_) {
     timeout_handler_.reset(
         new TouchTimeoutHandler(this, config.touch_ack_timeout_delay));
   }
 }
@@ skipping 460 matching lines @@
        iter != end;
        ++iter) {
     if (iter->second != ack_state)
       return false;
   }
 
   return true;
 }
 
 }  // namespace content