Defer synthetic gesture completions until events have been flushed

content/browser/renderer_host/input/gesture_event_queue.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 "content/browser/renderer_host/input/gesture_event_queue.h"
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/strings/string_number_conversions.h"
 #include "content/browser/renderer_host/input/input_router.h"
@@ skipping 225 matching lines @@
   client_->SendGestureEventImmediately(first_gesture_event);
   if (second_gesture_event.event.type != WebInputEvent::Undefined)
     client_->SendGestureEventImmediately(second_gesture_event);
 }
 
 TouchpadTapSuppressionController*
     GestureEventQueue::GetTouchpadTapSuppressionController() {
   return touchpad_tap_suppression_controller_.get();
 }
 
-bool GestureEventQueue::HasQueuedGestureEvents() const {
+bool GestureEventQueue::ExpectingGestureAck() const {
   return !coalesced_gesture_events_.empty();
 }
 
 void GestureEventQueue::FlingHasBeenHalted() {
   fling_in_progress_ = false;
 }
 
 bool GestureEventQueue::ShouldHandleEventNow() const {
   return coalesced_gesture_events_.size() == 1;
 }
@@ skipping 122 matching lines @@
 
 void GestureEventQueue::EnqueueEvent(
     const GestureEventWithLatencyInfo& gesture_event) {
   coalesced_gesture_events_.push_back(gesture_event);
   // Scroll and pinch events contributing to |combined_scroll_pinch_| will be
   // manually added to the queue in |MergeOrInsertScrollAndPinchEvent()|.
   combined_scroll_pinch_ = gfx::Transform();
 }
 
 }  // namespace content