PS - Filtering activeTab URL

chrome/browser/extensions/extension_tab_util.h

 // Copyright (c) 2012 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_EXTENSION_TAB_UTIL_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_UTIL_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 40 matching lines @@
     std::unique_ptr<bool> active;
     std::unique_ptr<bool> pinned;
     std::unique_ptr<int> index;
   };
 
   // Platform specific delegate.
   class Delegate {
    public:
     virtual ~Delegate() {}
     // Platform specific scrubbing of tab info for |extension|.
-    virtual void ScrubTabForExtension(const Extension* extension,
-                                      content::WebContents* contents,
+    virtual void ScrubTabForExtension(const std::string& extension_id,
                                       api::tabs::Tab* tab) = 0;
   };
 
+  static void PlatformSpecificFiltering(const std::string& extension_id,
+                                        api::tabs::Tab* tab);
+
   // Opens a new tab given an extension function |function| and creation
   // parameters |params|. Returns a Tab object if successful, or NULL and
   // optionally sets |error| if an error occurs.
   static base::DictionaryValue* OpenTab(UIThreadExtensionFunction* function,
                                         const OpenTabParams& params,
                                         bool user_gesture,
                                         std::string* error);
 
   static int GetWindowId(const Browser* browser);
   static int GetWindowIdOfTabStripModel(const TabStripModel* tab_strip_model);
@@ skipping 120 matching lines @@
   static bool OpenOptionsPage(const Extension* extension, Browser* browser);
 
   // Returns true if the given Browser can report tabs to extensions.
   // Example of Browsers which don't support tabs include apps and devtools.
   static bool BrowserSupportsTabs(Browser* browser);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_UTIL_H_