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// Copyright (c) 2012 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_API_API_RESOURCE_H_
#define CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_H_
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "chrome/common/extensions/extension.h"
namespace extensions {
class ApiResourceEventNotifier;
// An ApiResource represents something that an extension API manages, such as a
// socket or a serial-port connection. Typically, an ApiResourceManager will
// control the lifetime of all ApiResources of a specific derived type.
class ApiResource {
public:
virtual ~ApiResource();
const std::string& owner_extension_id() const {
return owner_extension_id_;
}
protected:
ApiResource(const std::string& owner_extension_id,
ApiResourceEventNotifier* event_notifier);
ApiResourceEventNotifier* event_notifier() const;
private:
// The extension that owns this resource. This could be derived from
// event_notifier, but that's a little too cute; to make future code
// maintenance easier, we'll require callers to explicitly specify the owner,
// and for now we'll assert that the owner implied by the event_notifier is
// consistent with the explicit one.
const std::string& owner_extension_id_;
// The object that lets this resource report events to the owner application.
scoped_refptr<ApiResourceEventNotifier> event_notifier_;
DISALLOW_COPY_AND_ASSIGN(ApiResource);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_H_
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