Replace views::MouseEvent with ui::MouseEvent

ash/system/tray/system_tray_bubble.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/tray/system_tray_bubble.h"
 
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_item.h"
@@ skipping 105 matching lines @@
     if (visible() == child->visible())
       return;
     SetVisible(child->visible());
     PreferredSizeChanged();
   }
 
   virtual void ChildPreferredSizeChanged(View* child) OVERRIDE {
     PreferredSizeChanged();
   }
 
-  virtual void OnMouseEntered(const views::MouseEvent& event) OVERRIDE {
+  virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE {
     hover_ = true;
     SchedulePaint();
   }
 
-  virtual void OnMouseExited(const views::MouseEvent& event) OVERRIDE {
+  virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE {
     hover_ = false;
     SchedulePaint();
   }
 
   virtual void OnPaintBackground(gfx::Canvas* canvas) OVERRIDE {
     if (child_count() == 0)
       return;
 
     views::View* view = child_at(0);
     if (!view->background()) {
@@ skipping 268 matching lines @@
 }
 
 void SystemTrayBubble::OnWidgetClosing(views::Widget* widget) {
   CHECK_EQ(bubble_widget_, widget);
   bubble_widget_ = NULL;
   tray_->RemoveBubble(this);
 }
 
 }  // namespace internal
 }  // namespace ash