Fix TAP_DOWN gesture event:

ui/views/widget/root_view.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/views/widget/root_view.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 432 matching lines @@
 
 ui::GestureStatus RootView::OnGestureEvent(const GestureEvent& event) {
   GestureEvent e(event, this);
   ui::GestureStatus status = ui::GESTURE_STATUS_UNKNOWN;
 
   if (gesture_handler_) {
     // Allow |gesture_handler_| to delete this during processing.
     View* handler = gesture_handler_;
     GestureEvent handler_event(event, this, gesture_handler_);
     // TODO: should only do this for the last touch id that goes up.
-    if (event.type() == ui::ET_GESTURE_TAP_UP)
+    if (event.type() == ui::ET_GESTURE_END)
       gesture_handler_ = NULL;
     return handler->OnGestureEvent(handler_event);
   }
 
   // Walk up the tree until we find a view that wants the gesture event.
   for (gesture_handler_ = GetEventHandlerForPoint(e.location());
       gesture_handler_ && (gesture_handler_ != this);
       gesture_handler_ = gesture_handler_->parent()) {
     if (!gesture_handler_->enabled()) {
       // Disabled views eat events but are treated as not handled.
@@ skipping 90 matching lines @@
 }
 
 void RootView::SetMouseLocationAndFlags(const MouseEvent& event) {
   last_mouse_event_flags_ = event.flags();
   last_mouse_event_x_ = event.x();
   last_mouse_event_y_ = event.y();
 }
 
 }  // namespace internal
 }  // namespace views