Disable an extension when it is upgraded to a version that requires more

chrome/browser/extensions/extensions_ui.h

 // Copyright (c) 2006-2009 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_BROWSER_EXTENSIONS_EXTENSIONS_UI_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSIONS_UI_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 39 matching lines @@
  public:
   explicit ExtensionsDOMHandler(ExtensionsService* extension_service);
   virtual ~ExtensionsDOMHandler();
 
   // DOMMessageHandler implementation.
   virtual void RegisterMessages();
 
   // Extension Detail JSON Struct for page. (static for ease of testing).
   static DictionaryValue* CreateExtensionDetailValue(
       const Extension *extension,
-      const std::vector<ExtensionPage>&);
+      const std::vector<ExtensionPage>&,
+      bool enabled);
 
   // ContentScript JSON Struct for page. (static for ease of testing).
   static DictionaryValue* CreateContentScriptDetailValue(
       const UserScript& script,
       const FilePath& extension_path);
 
  private:
   // Callback for "requestExtensionsData" message.
   void HandleRequestExtensionsData(const Value* value);
 
   // Callback for "inspect" message.
   void HandleInspectMessage(const Value* value);
 
   // Callback for "reload" message.
   void HandleReloadMessage(const Value* value);
 
+  // Callback for "enable" message.
+  void HandleEnableMessage(const Value* value);
+
   // Callback for "uninstall" message.
   void HandleUninstallMessage(const Value* value);
 
   // Helper that lists the current active html pages for an extension.
   std::vector<ExtensionPage> GetActivePagesForExtension(
       const std::string& extension_id);
 
   // Our model.
   scoped_refptr<ExtensionsService> extensions_service_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionsDOMHandler);
 };
 
 class ExtensionsUI : public DOMUI {
  public:
   explicit ExtensionsUI(TabContents* contents);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ExtensionsUI);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSIONS_UI_H_