Use FrameTreeNode ID as frameId in extension APIs

extensions/browser/api/web_request/web_request_api.h

Index: extensions/browser/api/web_request/web_request_api.h
diff --git a/extensions/browser/api/web_request/web_request_api.h b/extensions/browser/api/web_request/web_request_api.h
index e0be827204a5a3c2e7e6a11afaed9a30f16b79aa..2a6c306b1c6b5558f875d8cd008ec06164a41395 100644
--- a/extensions/browser/api/web_request/web_request_api.h
+++ b/extensions/browser/api/web_request/web_request_api.h
@@ -53,6 +53,7 @@ class URLRequest;
 
 namespace extensions {
 
+struct ExtensionApiFrameId;
 class InfoMap;
 class WebRequestRulesRegistry;
 class WebRequestEventRouterDelegate;
@@ -339,6 +340,11 @@ class ExtensionWebRequestEventRouter
       const std::vector<const EventListener*>& listeners,
       const base::ListValue& args);
 
+  void DispatchEventOnIO(void* browser_context,
+                         scoped_ptr<std::vector<EventListener>> listeners,
+                         base::DictionaryValue* dict,
+                         const ExtensionApiFrameId& extension_api_frame_id);
+
   // 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.