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// Copyright (c) 2009 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_PROCESS_MANAGER_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PROCESS_MANAGER_H_
#include "base/ref_counted.h"
#include <map>
class BrowsingInstance;
class Extension;
class ExtensionView;
class GURL;
class Profile;
class SiteInstance;
// This class controls what process new extension instances use. We use the
// BrowsingInstance site grouping rules to group extensions. Since all
// resources in a given extension have the same origin, they will be grouped
// into the same process.
//
// We separate further by Profile: each Profile has its own group of extension
// processes that never overlap with other Profiles.
class ExtensionProcessManager {
public:
static ExtensionProcessManager* GetInstance();
// These are public for use by Singleton. Do not instantiate or delete
// manually.
ExtensionProcessManager();
~ExtensionProcessManager();
// Creates a new ExtensionView, grouping it in the appropriate SiteInstance
// (and therefore process) based on the URL and profile.
ExtensionView* CreateView(Extension* extension,
const GURL& url,
Profile* profile);
// Returns the SiteInstance that the given URL belongs to in this profile.
SiteInstance* GetSiteInstanceForURL(const GURL& url, Profile* profile);
private:
// Returns our BrowsingInstance for the given profile. Lazily created and
// cached.
BrowsingInstance* GetBrowsingInstance(Profile* profile);
// Cache of BrowsingInstances grouped by Profile.
typedef std::map<Profile*, scoped_refptr<BrowsingInstance> >
BrowsingInstanceMap;
BrowsingInstanceMap browsing_instance_map_;
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_PROCESS_MANAGER_H_
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