Add a status message "Waiting for extension Foo..." when there's a request

chrome/browser/extensions/extension_webrequest_api.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 CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBREQUEST_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBREQUEST_API_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 200 matching lines @@
       uint64 request_id,
       EventResponse* response);
 
   // Adds a listener to the given event. |event_name| specifies the event being
   // listened to. |sub_event_name| is an internal event uniquely generated in
   // the extension process to correspond to the given filter and
   // extra_info_spec.
   void AddEventListener(
       void* profile,
       const std::string& extension_id,
+      const std::string& extension_name,
       const std::string& event_name,
       const std::string& sub_event_name,
       const RequestFilter& filter,
       int extra_info_spec,
       base::WeakPtr<IPC::Message::Sender> ipc_sender);
 
   // Removes the listener for the given sub-event.
   void RemoveEventListener(
       void* profile,
       const std::string& extension_id,
@@ skipping 60 matching lines @@
       ResourceType::Type resource_type,
       int* extra_info_spec,
       std::vector<const ExtensionWebRequestEventRouter::EventListener*>*
           matching_listeners);
 
   // Decrements the count of event handlers blocking the given request. When the
   // count reaches 0, we stop blocking the request and proceed it using the
   // method requested by the extension with the highest precedence. Precedence
   // is decided by extension install time. If |response| is non-NULL, this
   // method assumes ownership.
-  void DecrementBlockCount(uint64 request_id, EventResponse* response);
+  void DecrementBlockCount(
+      void* profile,
+      const std::string& event_name,
+      uint64 request_id,
+      EventResponse* response);
 
   // Sets the flag that |event_type| has been signaled for |request_id|.
   // Returns the value of the flag before setting it.
   bool GetAndSetSignaled(uint64 request_id, EventTypes event_type);
 
   // Clears the flag that |event_type| has been signaled for |request_id|.
   void ClearSignaled(uint64 request_id, EventTypes event_type);
 
   // Returns the difference between the original request properties stored
   // in |blocked_request| and the EventResponse in |response|.
@@ skipping 41 matching lines @@
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.webRequest.addEventListener");
 };
 
 class WebRequestEventHandled : public SyncIOThreadExtensionFunction {
  public:
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.webRequest.eventHandled");
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBREQUEST_API_H_