Replace all enums with enum classes in permissions code.

chrome/browser/permissions/permission_infobar_delegate.cc

 // Copyright 2014 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/permissions/permission_infobar_delegate.h"
 
 #include <utility>
 
 #include "build/build_config.h"
 #include "chrome/browser/geolocation/geolocation_infobar_delegate_android.h"
@@ skipping 85 matching lines @@
 }
 
 bool PermissionInfoBarDelegate::Accept() {
   bool update_content_setting = true;
   if (ShouldShowPersistenceToggle()) {
     update_content_setting = persist_;
     PermissionUmaUtil::PermissionPromptAcceptedWithPersistenceToggle(
         content_settings_type_, persist_);
   }
 
-  SetPermission(update_content_setting, GRANTED);
+  SetPermission(update_content_setting, PermissionAction::GRANTED);
   return true;
 }
 
 bool PermissionInfoBarDelegate::Cancel() {
   bool update_content_setting = true;
   if (ShouldShowPersistenceToggle()) {
     update_content_setting = persist_;
     PermissionUmaUtil::PermissionPromptDeniedWithPersistenceToggle(
         content_settings_type_, persist_);
   }
 
-  SetPermission(update_content_setting, DENIED);
+  SetPermission(update_content_setting, PermissionAction::DENIED);
   return true;
 }
 
 void PermissionInfoBarDelegate::InfoBarDismissed() {
-  SetPermission(false, DISMISSED);
+  SetPermission(false, PermissionAction::DISMISSED);
 }
 
 base::string16 PermissionInfoBarDelegate::GetButtonLabel(
     InfoBarButton button) const {
   return l10n_util::GetStringUTF16((button == BUTTON_OK) ? IDS_PERMISSION_ALLOW
                                                          : IDS_PERMISSION_DENY);
 }
 
 base::string16 PermissionInfoBarDelegate::GetMessageText() const {
   return l10n_util::GetStringFUTF16(
@@ skipping 25 matching lines @@
 PermissionInfoBarDelegate*
 PermissionInfoBarDelegate::AsPermissionInfoBarDelegate() {
   return this;
 }
 
 void PermissionInfoBarDelegate::SetPermission(bool update_content_setting,
                                               PermissionAction decision) {
   action_taken_ = true;
   callback_.Run(update_content_setting, decision);
 }