Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/views/toolbar/reload_button.cc

 // Copyright 2013 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 "chrome/browser/ui/views/toolbar/reload_button.h"
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 121 matching lines @@
   ToolbarButton::ShowDropDownMenu(source_type);  // Blocks.
   ChangeMode(intended_mode_, true);
 }
 
 void ReloadButton::ButtonPressed(views::Button* /* button */,
                                  const ui::Event& event) {
   ClearPendingMenu();
 
   if (visible_mode_ == MODE_STOP) {
     if (command_updater_)
-      command_updater_->ExecuteCommandWithDisposition(IDC_STOP, CURRENT_TAB);
+      command_updater_->ExecuteCommandWithDisposition(
+          IDC_STOP, WindowOpenDisposition::CURRENT_TAB);
     // The user has clicked, so we can feel free to update the button,
     // even if the mouse is still hovering.
     ChangeMode(MODE_RELOAD, true);
   } else if (!double_click_timer_.IsRunning()) {
     // Shift-clicking or ctrl-clicking the reload button means we should ignore
     // any cached content.
     int command;
     int flags = event.flags();
     if (event.IsShiftDown() || event.IsControlDown()) {
       command = IDC_RELOAD_BYPASSING_CACHE;
@@ skipping 109 matching lines @@
 
 void ReloadButton::OnDoubleClickTimer() {
   if (!IsMenuShowing())
     ChangeMode(intended_mode_, false);
 }
 
 void ReloadButton::OnStopToReloadTimer() {
   DCHECK(!IsMenuShowing());
   ChangeMode(intended_mode_, true);
 }