chromium/components/subresource_filter/content/browser/subresource_filter_observer_manager.h

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_OBSERVER_MANAGER_H_
#define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_OBSERVER_MANAGER_H_

#include "base/observer_list.h"
#include "components/subresource_filter/content/browser/subresource_filter_observer.h"
#include "components/subresource_filter/core/common/activation_decision.h"
#include "components/subresource_filter/core/common/load_policy.h"
#include "content/public/browser/web_contents_user_data.h"

namespace content {
class NavigationHandle;
class RenderFrameHost;
class WebContents;
}  // namespace content

namespace subresource_filter {

namespace mojom {
class ActivationState;
}  // namespace mojom

// Manages retaining the list of SubresourceFilterObservers and notifying them
// of various filtering events. Scoped to the lifetime of a WebContents.
// !!!WARNING!!!: This observer will receive notifications from all pages
// within a WebContents. This includes non-primary pages like those that are
// prerendering which is probably not what clients expect. Clients should
// make sure they're manually scoping observations to the relevant page.
// TODO(bokan): We should probably refactor this class to manage the
// observations of a single Page/FrameTree. #MPArch
class SubresourceFilterObserverManager
    : public content::WebContentsUserData<SubresourceFilterObserverManager> { … };

}  // namespace subresource_filter

#endif  // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_OBSERVER_MANAGER_H_