[Extensions] Use a separate IPC message for extension events

extensions/renderer/extension_frame_helper.cc

 // Copyright 2013 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.
 
 #include "extensions/renderer/extension_frame_helper.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_util.h"
 #include "base/timer/elapsed_timer.h"
 #include "content/public/renderer/render_frame.h"
@@ skipping 361 matching lines @@
   extension_dispatcher_->OnExtensionResponse(request_id,
                                              success,
                                              response,
                                              error);
 }
 
 void ExtensionFrameHelper::OnExtensionMessageInvoke(
     const std::string& extension_id,
     const std::string& module_name,
     const std::string& function_name,
-    const base::ListValue& args,
-    bool user_gesture) {
-  extension_dispatcher_->InvokeModuleSystemMethod(render_frame(), extension_id,
-                                                  module_name, function_name,
-                                                  args, user_gesture);
+    const base::ListValue& args) {
+  extension_dispatcher_->InvokeModuleSystemMethod(
+      render_frame(), extension_id, module_name, function_name, args);
 }
 
 void ExtensionFrameHelper::OnAssignPortId(int port_id, int request_id) {
   auto iter = pending_port_requests_.find(request_id);
   DCHECK(iter != pending_port_requests_.end());
   PendingPortRequest& request = *iter->second;
   switch (request.type) {
     case PortType::EXTENSION: {
       UMA_HISTOGRAM_TIMES("Extensions.Messaging.GetPortIdAsyncTime.Extension",
                           request.timer.Elapsed());
@@ skipping 12 matching lines @@
   }
   request.callback.Run(port_id);
   pending_port_requests_.erase(iter);
 }
 
 void ExtensionFrameHelper::OnDestruct() {
   delete this;
 }
 
 }  // namespace extensions