Introduce ActiveScriptController; track active extension scripts

extensions/common/permissions/permissions_data.h

 // Copyright (c) 2013 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 EXTENSIONS_COMMON_PERMISSIONS_PERMISSIONS_DATA_H_
 #define EXTENSIONS_COMMON_PERMISSIONS_PERMISSIONS_DATA_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 159 matching lines @@
   static bool CanExecuteScriptEverywhere(const Extension* extension);
 
   // Returns true if the |extension| is allowed to obtain the contents of a
   // page as an image.  Since a page may contain sensitive information, this
   // is restricted to the extension's host permissions as well as the
   // extension page itself.
   static bool CanCaptureVisiblePage(const Extension* extension,
                                     int tab_id,
                                     std::string* error);
 
+  // Returns true if the user should be alerted to the fact that the given
+  // |extension| is running a script.
+  static bool ShouldNotifyForScriptExecution(const Extension* extension);
+
   // Parse the permissions of a given extension in the initialization process.
   bool ParsePermissions(Extension* extension, base::string16* error);
 
   // Ensure manifest handlers provide their custom manifest permissions.
   void InitializeManifestPermissions(Extension* extension);
 
   // Finalize permissions after the initialization process completes.
   void FinalizePermissions(Extension* extension);
 
  private:
@@ skipping 18 matching lines @@
   mutable scoped_refptr<const PermissionSet> active_permissions_;
 
   mutable TabPermissionsMap tab_specific_permissions_;
 
   DISALLOW_COPY_AND_ASSIGN(PermissionsData);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_PERMISSIONS_PERMISSIONS_DATA_H_