Allow script to request durable storage permission (chrome side)

content/child/permissions/permission_dispatcher.cc

 // Copyright 2015 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 "content/child/permissions/permission_dispatcher.h"
 
 #include "base/callback.h"
 #include "content/child/worker_task_runner.h"
 #include "content/public/common/service_registry.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/platform/modules/permissions/WebPermissionObserver.h"
 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 
 using blink::WebPermissionObserver;
 
 namespace content {
 
 namespace {
 
 PermissionName GetPermissionName(blink::WebPermissionType type) {
   switch (type) {
     case blink::WebPermissionTypeGeolocation:
       return PERMISSION_NAME_GEOLOCATION;
     case blink::WebPermissionTypeNotifications:
       return PERMISSION_NAME_NOTIFICATIONS;
     case blink::WebPermissionTypePushNotifications:
       return PERMISSION_NAME_PUSH_NOTIFICATIONS;
     case blink::WebPermissionTypeMidiSysEx:
       return PERMISSION_NAME_MIDI_SYSEX;
+    case blink::WebPermissionTypeDurableStorage:
+        return PERMISSION_NAME_DURABLE_STORAGE;
     case blink::WebPermissionTypeMidi:
       return PERMISSION_NAME_MIDI;
     default:
       // The default statement is only there to prevent compilation failures if
       // WebPermissionType enum gets extended.
       NOTREACHED();
       return PERMISSION_NAME_GEOLOCATION;
   }
 }
 
@@ skipping 311 matching lines @@
       origin,
       current_status,
       base::Bind(&PermissionDispatcher::OnPermissionChanged,
                  base::Unretained(this),
                  type,
                  origin,
                  base::Unretained(observer)));
 }
 
 }  // namespace content