Three Finger Swipe

ash/wm/system_gesture_event_filter.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 "ash/wm/system_gesture_event_filter.h"
 
 #include "ash/shell.h"
 #include "ui/aura/event.h"
 #include "ui/aura/root_window.h"
 
@@ skipping 19 matching lines @@
 
 ui::TouchStatus SystemGestureEventFilter::PreHandleTouchEvent(
     aura::Window* target,
     aura::TouchEvent* event) {
   return ui::TOUCH_STATUS_UNKNOWN;
 }
 
 ui::GestureStatus SystemGestureEventFilter::PreHandleGestureEvent(
     aura::Window* target, aura::GestureEvent* event) {
   // TODO(tdresser) handle system level gesture events
+  if (event->type() == ui::ET_GESTURE_THREE_FINGER_SWIPE)
+    return ui::GESTURE_STATUS_CONSUMED;
   if (target == Shell::GetRootWindow())
     return ui::GESTURE_STATUS_CONSUMED;
   return ui::GESTURE_STATUS_UNKNOWN;
 }
 
 }  // namespace internal
 }  // namespace ash
-