Always forward touch events to the TouchEventQueue

content/browser/renderer_host/render_widget_host_view_aura.cc

 // Copyright (c) 2012 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/render_widget_host_view_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 2049 matching lines @@
   // Update the touch event first.
   if (!pointer_state_.OnTouch(*event)) {
     event->StopPropagation();
     return;
   }
 
   blink::WebTouchEvent touch_event = CreateWebTouchEventFromMotionEvent(
       pointer_state_, event->may_cause_scrolling());
   pointer_state_.CleanupRemovedTouchPoints(*event);
 
-  // Forward the touch event only if a touch point was updated, and
-  // there's a touch-event handler in the page, and no other
-  // touch-event is in the queue. It is important to always mark
-  // events as being handled asynchronously if there is a touch-event
-  // handler in the page, or some touch-event is already in the queue,
-  // even if no point has been updated. This ensures that this event
-  // does not get processed by the gesture recognizer before events
-  // currently awaiting dispatch in the touch queue.
-  if (host_->ShouldForwardTouchEvent()) {
-    event->DisableSynchronousHandling();
-    host_->ForwardTouchEventWithLatencyInfo(touch_event, *event->latency());
-  }
+  // It is important to always mark events as being handled asynchronously when
+  // they are forwarded. This ensures that the current event does not get
+  // processed by the gesture recognizer before events currently awaiting
+  // dispatch in the touch queue.
+  event->DisableSynchronousHandling();
+  host_->ForwardTouchEventWithLatencyInfo(touch_event, *event->latency());
 }
 
 void RenderWidgetHostViewAura::OnGestureEvent(ui::GestureEvent* event) {
   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnGestureEvent");
   if ((event->type() == ui::ET_GESTURE_PINCH_BEGIN ||
       event->type() == ui::ET_GESTURE_PINCH_UPDATE ||
       event->type() == ui::ET_GESTURE_PINCH_END) && !pinch_zoom_enabled_) {
     event->SetHandled();
     return;
   }
@@ skipping 587 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewBase, public:
 
 // static
 void RenderWidgetHostViewBase::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content