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// 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.
#ifndef COMPONENTS_WEB_CACHE_RENDERER_WEB_CACHE_RENDER_PROCESS_OBSERVER_H_
#define COMPONENTS_WEB_CACHE_RENDERER_WEB_CACHE_RENDER_PROCESS_OBSERVER_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "content/public/renderer/render_process_observer.h"
namespace web_cache {
// This class filters the incoming cache related control messages.
class WebCacheRenderProcessObserver : public content::RenderProcessObserver {
public:
WebCacheRenderProcessObserver();
~WebCacheRenderProcessObserver() override;
// Needs to be called by RenderViews in case of navigations to execute
// any 'clear cache' commands that were delayed until the next navigation.
void ExecutePendingClearCache();
private:
// RenderProcessObserver implementation.
bool OnControlMessageReceived(const IPC::Message& message) override;
void WebKitInitialized() override;
void OnRenderProcessShutdown() override;
// Message handlers.
void OnSetCacheCapacities(size_t min_dead_capacity,
size_t max_dead_capacity,
size_t capacity);
// If |on_navigation| is true, the clearing is delayed until the next
// navigation event.
void OnClearCache(bool on_navigation);
// If true, the web cache shall be cleared before the next navigation event.
bool clear_cache_pending_;
bool webkit_initialized_;
size_t pending_cache_min_dead_capacity_;
size_t pending_cache_max_dead_capacity_;
size_t pending_cache_capacity_;
DISALLOW_COPY_AND_ASSIGN(WebCacheRenderProcessObserver);
};
} // namespace web_cache
#endif // COMPONENTS_WEB_CACHE_RENDERER_WEB_CACHE_RENDER_PROCESS_OBSERVER_H_
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