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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_BACK_FORWARD_CACHE_COMMIT_DEFERRING_CONDITION_H_
#define CONTENT_BROWSER_RENDERER_HOST_BACK_FORWARD_CACHE_COMMIT_DEFERRING_CONDITION_H_
#include <memory>
#include "content/public/browser/commit_deferring_condition.h"
namespace content {
class NavigationRequest;
// Defers a navigation commit to a back-forward cached page. When activating a
// page from the back forward cache, we disable JS eviction and unfreeze the
// page before committing it. When this happens we need to wait for the
// renderer to respond that eviction is disabled before we proceed. This
// condition is used to defer committing until we hear back from all renderers.
class BackForwardCacheCommitDeferringCondition
: public CommitDeferringCondition {
public:
static std::unique_ptr<CommitDeferringCondition> MaybeCreate(
NavigationRequest& navigation_request);
BackForwardCacheCommitDeferringCondition(
const BackForwardCacheCommitDeferringCondition&) = delete;
BackForwardCacheCommitDeferringCondition& operator=(
const BackForwardCacheCommitDeferringCondition&) = delete;
~BackForwardCacheCommitDeferringCondition() override;
Result WillCommitNavigation(base::OnceClosure resume) override;
const char* TraceEventName() const override;
private:
explicit BackForwardCacheCommitDeferringCondition(
NavigationRequest& navigation_request);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_BACK_FORWARD_CACHE_COMMIT_DEFERRING_CONDITION_H_
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