Merge //content/child/permissions into Blink's permissions module.

third_party/WebKit/Source/modules/permissions/PermissionCallback.h

-// 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.
-
-#ifndef PermissionCallback_h
-#define PermissionCallback_h
-
-#include "platform/heap/Handle.h"
-#include "public/platform/modules/permissions/WebPermissionClient.h"
-#include "public/platform/modules/permissions/WebPermissionStatus.h"
-#include "public/platform/modules/permissions/WebPermissionType.h"
-#include "wtf/Allocator.h"
-#include "wtf/Noncopyable.h"
-
-namespace blink {
-
-class ScriptPromiseResolver;
-
-// PermissionQueryCallback is an implementation of WebPermissionCallbacks
-// that will resolve the underlying promise depending on the result passed to
-// the callback. It takes a WebPermissionType in its constructor and will pass
-// it to the PermissionStatus.
-class PermissionCallback final : public WebPermissionCallback {
-    USING_FAST_MALLOC(PermissionCallback);
-    WTF_MAKE_NONCOPYABLE(PermissionCallback);
-public:
-    PermissionCallback(ScriptPromiseResolver*, WebPermissionType);
-    ~PermissionCallback() override;
-
-    void onSuccess(WebPermissionStatus) override;
-    void onError() override;
-
-private:
-    Persistent<ScriptPromiseResolver> m_resolver;
-    WebPermissionType m_permissionType;
-};
-
-} // namespace blink
-
-#endif // PermissionCallback_h