Remove ui::TouchEvent -> blink::WebTouchEvent conversion methods.

ui/events/gestures/gesture_provider_aura.cc

Index: ui/events/gestures/gesture_provider_aura.cc
diff --git a/ui/events/gestures/gesture_provider_aura.cc b/ui/events/gestures/gesture_provider_aura.cc
index ad6609279d94ac295b00dfc55558c6487a16fa3d..26b8f57539079ccb0b92d38cb0255bfa6d4164b5 100644
--- a/ui/events/gestures/gesture_provider_aura.cc
+++ b/ui/events/gestures/gesture_provider_aura.cc
@@ -26,29 +26,9 @@ GestureProviderAura::~GestureProviderAura() {}
 
 bool GestureProviderAura::OnTouchEvent(const TouchEvent& event) {
   last_unique_touch_event_id_ = event.unique_event_id();
-  int index = pointer_state_.FindPointerIndexOfId(event.touch_id());
-  bool pointer_id_is_active = index != -1;
-
-  if (event.type() == ET_TOUCH_PRESSED && pointer_id_is_active) {
-    // Ignore touch press events if we already believe the pointer is down.
-    return false;
-  } else if (event.type() != ET_TOUCH_PRESSED && !pointer_id_is_active) {
-    // We could have an active touch stream transfered to us, resulting in touch
-    // move or touch up events without associated touch down events. Ignore
-    // them.
-    return false;
-  }
-
-  // If this is a touchmove event, and it isn't different from the last
-  // event, ignore it.
-  if (event.type() == ET_TOUCH_MOVED &&
-      event.x() == pointer_state_.GetX(index) &&
-      event.y() == pointer_state_.GetY(index)) {
-    return false;
-  }
-
   last_touch_event_latency_info_ = *event.latency();
-  pointer_state_.OnTouch(event);
+  if (!pointer_state_.OnTouch(event))
+    return false;
 
   bool result = filtered_gesture_provider_.OnTouchEvent(pointer_state_);
   pointer_state_.CleanupRemovedTouchPoints(event);