Implement <webview>.addContentScript/removeContentScript API [1]

extensions/browser/guest_view/guest_view_message_filter.h

 // Copyright 2015 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_BROWSER_GUEST_VIEW_GUEST_VIEW_MESSAGE_FILTER_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MESSAGE_FILTER_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 42 matching lines @@
                      int guest_instance_id,
                      const base::DictionaryValue& attach_params);
   void OnCreateMimeHandlerViewGuest(int render_frame_id,
                                     const std::string& view_id,
                                     int element_instance_id,
                                     const gfx::Size& element_size);
   void OnResizeGuest(int render_frame_id,
                      int element_instance_id,
                      const gfx::Size& new_size);
 
+  void OnCanExecuteContentScript(int render_view_id,
+                                 int script_id,
+                                 bool* allowed);
+
   // Runs on UI thread.
   void MimeHandlerViewGuestCreatedCallback(int element_instance_id,
                                            int embedder_render_process_id,
                                            int embedder_render_frame_id,
                                            const gfx::Size& element_size,
                                            content::WebContents* web_contents);
 
   const int render_process_id_;
 
   // Should only be accessed on the UI thread.
   content::BrowserContext* const browser_context_;
 
   // Weak pointers produced by this factory are bound to the IO thread.
   base::WeakPtrFactory<GuestViewMessageFilter> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GuestViewMessageFilter);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MESSAGE_FILTER_H_