Handle gesture events in notifications.

ash/system/web_notification/web_notification_tray.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/system/web_notification/web_notification_tray.h"
 
 #include "ash/system/status_area_widget.h"
 #include "ash/system/tray/tray_bubble_view.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_views.h"
@@ skipping 364 matching lines @@
     }
     layout->AddPaddingRow(0, kTrayPopupPaddingBetweenItems);
   }
 
   // views::View overrides.
   virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE {
     tray_->OnClicked(notification_.id);
     return true;
   }
 
+  virtual ui::GestureStatus OnGestureEvent(
+      const views::GestureEvent& event) OVERRIDE {
+    if (event.type() != ui::ET_GESTURE_TAP)
+      return ui::GESTURE_STATUS_UNKNOWN;
+    tray_->OnClicked(notification_.id);
+    return ui::GESTURE_STATUS_CONSUMED;
+  }
+
   // Overridden from ButtonListener.
   virtual void ButtonPressed(views::Button* sender,
                              const views::Event& event) OVERRIDE {
     if (sender == close_button_)
       tray_->RemoveNotification(notification_.id);
   }
 
   // Overridden from MenuButtonListener.
   virtual void OnMenuButtonClicked(
       View* source, const gfx::Point& point) OVERRIDE {
@@ skipping 438 matching lines @@
   UpdateIcon();
   if (!bubble())
     return;
   if (GetNotificationCount() == 0)
     status_area_widget_->HideWebNotificationBubble();
   else
     bubble_->ScheduleUpdate();
 }
 
 }  // namespace ash