This patch implements Chromium's Aura gesture recognizer in terms of utouch-grail and utouch-frame …

ui/aura/root_window.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 "ui/aura/root_window.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 571 matching lines @@
            rend = filters.rend();
        it != rend; ++it) {
     ui::TouchStatus status = (*it)->PreHandleTouchEvent(target, event);
     if (status != ui::TOUCH_STATUS_UNKNOWN)
       return status;
   }
 
   return target->delegate()->OnTouchEvent(event);
 }
 
-ui::GestureStatus RootWindow::ProcessGestureEvent(Window* target,
-                                                  GestureEvent* event) {
+ui::GestureStatus RootWindow::ProcessGestureEvent(
+    Window* target,
+    GestureEvent* event) {
   if (!target->IsVisible())
     return ui::GESTURE_STATUS_UNKNOWN;
 
   EventFilters filters;
   GetEventFiltersToNotify(target->parent(), &filters);
   ui::GestureStatus status = ui::GESTURE_STATUS_UNKNOWN;
   for (EventFilters::const_reverse_iterator it = filters.rbegin(),
            rend = filters.rend();
        it != rend; ++it) {
     status = (*it)->PreHandleGestureEvent(target, event);
@@ skipping 229 matching lines @@
   // is currently broken. See/ crbug.com/107931.
   MouseEvent event(ui::ET_MOUSE_MOVED,
                    orig_mouse_location,
                    orig_mouse_location,
                    ui::EF_IS_SYNTHESIZED);
   DispatchMouseEvent(&event);
 #endif
 }
 
 }  // namespace aura