chrome/browser/extensions/external_component_loader.h

   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
  14 namespace extensions {
  15
  16 class 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.
  24 class 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   void StartLoading() override;
  33
  34  private:
  35   friend class base::RefCountedThreadSafe<ExternalLoader>;
  36   ~ExternalComponentLoader() override;
  37
  38   void AddExternalExtension(const std::string& extension_id);
  39
  40   // The profile that this loader is associated with. It listens for
  41   // preference changes for that profile.
  42   Profile* profile_;
  43   DISALLOW_COPY_AND_ASSIGN(ExternalComponentLoader);
  44 };
  45
  46 }  // namespace extensions
  47
  48 #endif  // CHROME_BROWSER_EXTENSIONS_EXTERNAL_COMPONENT_LOADER_H_