MacViews: Clear mouse handler when showing context menus.

ui/views/controls/menu/menu_controller.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/controls/menu/menu_controller.h"
 
 #include "base/i18n/case_conversion.h"
 #include "base/i18n/rtl.h"
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 383 matching lines @@
                                   bool is_nested_drag,
                                   int* result_event_flags) {
   exit_type_ = EXIT_NONE;
   possible_drag_ = false;
   drag_in_progress_ = false;
   did_initiate_drag_ = false;
   closing_event_time_ = base::TimeTicks();
   menu_start_time_ = base::TimeTicks::Now();
   menu_start_mouse_press_loc_ = gfx::Point();
 
-  // If we are shown on mouse press, we will eat the subsequent mouse down and
-  // the parent widget will not be able to reset its state (it might have mouse
-  // capture from the mouse down). So we clear its state here.
   if (parent) {
     View* root_view = parent->GetRootView();
     if (root_view) {
-      root_view->SetMouseHandler(NULL);
       const ui::Event* event =
           static_cast<internal::RootView*>(root_view)->current_event();
       if (event && event->type() == ui::ET_MOUSE_PRESSED) {
         gfx::Point screen_loc(
             static_cast<const ui::MouseEvent*>(event)->location());
         View::ConvertPointToScreen(
             static_cast<View*>(event->target()), &screen_loc);
         menu_start_mouse_press_loc_ = screen_loc;
       }
     }
@@ skipping 2309 matching lines @@
   if (hot_button_)
     hot_button_->SetHotTracked(false);
   hot_button_ = hot_button;
   if (hot_button) {
     hot_button->SetHotTracked(true);
     hot_button->NotifyAccessibilityEvent(ui::AX_EVENT_SELECTION, true);
   }
 }
 
 }  // namespace views