Remove extension group from DOMWrapperWorld.

components/translate/content/renderer/translate_helper.h

 // Copyright (c) 2011 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 COMPONENTS_TRANSLATE_CONTENT_RENDERER_TRANSLATE_HELPER_H_
 #define COMPONENTS_TRANSLATE_CONTENT_RENDERER_TRANSLATE_HELPER_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 13 matching lines @@
 
 namespace translate {
 
 // This class deals with page translation.
 // There is one TranslateHelper per RenderView.
 class TranslateHelper : public content::RenderFrameObserver,
                         public mojom::Page {
  public:
   TranslateHelper(content::RenderFrame* render_frame,
                   int world_id,
-                  int extension_group,
                   const std::string& extension_scheme);
   ~TranslateHelper() override;
 
   // Informs us that the page's text has been extracted.
   void PageCaptured(const base::string16& contents);
 
   // Lets the translation system know that we are preparing to navigate to
   // the specified URL. If there is anything that can or should be done before
   // this URL loads, this is the time to prepare for it.
   void PrepareForUrl(const GURL& url);
@@ skipping 93 matching lines @@
   std::string source_lang_;
   std::string target_lang_;
 
   // Time when a page langauge is determined. This is used to know a duration
   // time from showing infobar to requesting translation.
   base::TimeTicks language_determined_time_;
 
   // The world ID to use for script execution.
   int world_id_;
 
-  // The extension group.
-  int extension_group_;
-
   // The URL scheme for translate extensions.
   std::string extension_scheme_;
 
   mojom::ContentTranslateDriverPtr translate_driver_;
 
   mojo::Binding<mojom::Page> binding_;
 
   // Method factory used to make calls to TranslatePageImpl.
   base::WeakPtrFactory<TranslateHelper> weak_method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateHelper);
 };
 
 }  // namespace translate
 
 #endif  // COMPONENTS_TRANSLATE_CONTENT_RENDERER_TRANSLATE_HELPER_H_