Add a method to classify what permission class an extension is in, with unit

chrome/common/extensions/extension.h

 // 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_COMMON_EXTENSIONS_EXTENSION_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 44 matching lines @@
     EXTENSION_ICON_BITTY = 16,
   };
 
   // Icon sizes used by the extension system.
   static const int kIconSizes[];
 
   // Each permission is a module that the extension is permitted to use.
   static const char* kPermissionNames[];
   static const size_t kNumPermissions;
 
+  // A classification of how dangerous an extension can be, based on what it has
+  // access to.
+  enum PermissionClass {
+    PERMISSION_CLASS_LOW = 0,  // green
+    PERMISSION_CLASS_MEDIUM,  // yellow
+    PERMISSION_CLASS_HIGH,  // orange
+    PERMISSION_CLASS_FULL,  // red
+  };
+
   // An NPAPI plugin included in the extension.
   struct PluginInfo {
     FilePath path;  // Path to the plugin.
     bool is_public;  // False if only this extension can load this plugin.
   };
 
   // A toolstrip and its associated mole.
   struct ToolstripInfo {
     ToolstripInfo() : mole_height(0) {}
 
@@ skipping 123 matching lines @@
   DictionaryValue* GetThemeTints() const { return theme_tints_.get(); }
   DictionaryValue* GetThemeDisplayProperties() const {
     return theme_display_properties_.get();
   }
   bool IsTheme() { return is_theme_; }
 
   // Returns a list of paths (relative to the extension dir) for images that
   // the browser might load (like themes and page action icons).
   std::set<FilePath> GetBrowserImages();
 
+  PermissionClass GetPermissionClass();
+
 
   // Runtime data:
   // Put dynamic data about the state of a running extension below.
 
   // Whether the background page, if any, is ready. We don't load other
   // components until then. If there is no background page, we consider it to
   // be ready.
   bool GetBackgroundPageReady();
   void SetBackgroundPageReady();
 
@@ skipping 101 matching lines @@
 
   // True if the background page is ready.
   bool background_page_ready_;
 
   FRIEND_TEST(ExtensionTest, LoadPageActionHelper);
 
   DISALLOW_COPY_AND_ASSIGN(Extension);
 };
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_H_