1// Copyright (c) 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_EXTENSIONS_EXTERNAL_COMPONENT_LOADER_H_
6#define CHROME_BROWSER_EXTENSIONS_EXTERNAL_COMPONENT_LOADER_H_
7
8#include <string>
9
10#include "base/compiler_specific.h"
11#include "chrome/browser/extensions/external_loader.h"
12#include "chrome/browser/profiles/profile.h"
13
14namespace extensions {
15
16class Extension;
17
18// A specialization of the ExternalLoader that loads a hard-coded list of
19// external extensions, that should be considered components of chrome (but
20// unlike Component extensions, these extensions are installed from the webstore
21// and don't get access to component only APIs.
22// Instances of this class are expected to be created and destroyed on the UI
23// thread and they are expecting public method calls from the UI thread.
24class ExternalComponentLoader : public ExternalLoader {
25 public:
26  explicit ExternalComponentLoader(Profile* profile);
27
28  // True if |extension| should be modifiable by the user.
29  static bool IsModifiable(const extensions::Extension* extension);
30
31 protected:
32  virtual void StartLoading() OVERRIDE;
33
34 private:
35  friend class base::RefCountedThreadSafe<ExternalLoader>;
36  virtual ~ExternalComponentLoader();
37
38  // The profile that this loader is associated with. It listens for
39  // preference changes for that profile.
40  Profile* profile_;
41  DISALLOW_COPY_AND_ASSIGN(ExternalComponentLoader);
42};
43
44}  // namespace extensions
45
46#endif  // CHROME_BROWSER_EXTENSIONS_EXTERNAL_COMPONENT_LOADER_H_
47