Use FrameTreeNode ID as frameId in extension APIs

extensions/browser/api/web_request/web_request_api.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 EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_H_
 #define EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 325 matching lines @@
   // Ensures that future callbacks for |request| are ignored so that it can be
   // destroyed safely.
   void ClearPendingCallbacks(const net::URLRequest* request);
 
   bool DispatchEvent(
       void* browser_context,
       net::URLRequest* request,
       const std::vector<const EventListener*>& listeners,
       const base::ListValue& args);
 
+  void DispatchEventOnIO(void* browser_context,
+                         scoped_ptr<std::vector<EventListener>> listeners,
+                         base::DictionaryValue* dict);
+
   // Returns a list of event listeners that care about the given event, based
   // on their filter parameters. |extra_info_spec| will contain the combined
   // set of extra_info_spec flags that every matching listener asked for.
   std::vector<const EventListener*> GetMatchingListeners(
       void* browser_context,
       const extensions::InfoMap* extension_info_map,
       const std::string& event_name,
       const net::URLRequest* request,
       int* extra_info_spec);
 
@@ skipping 200 matching lines @@
       extensions::QuotaLimitHeuristics* heuristics) const override;
   // Handle quota exceeded gracefully: Only warn the user but still execute the
   // function.
   void OnQuotaExceeded(const std::string& error) override;
   bool RunSync() override;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_H_