[Extensions] Kill off ExtensionMsg_AddMessageToConsole

extensions/browser/extension_function.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/browser/extension_function.h"
 
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "base/synchronization/lock.h"
 #include "content/public/browser/notification_source.h"
@@ skipping 461 matching lines @@
 
 void UIThreadExtensionFunction::SetTransferredBlobUUIDs(
     const std::vector<std::string>& blob_uuids) {
   DCHECK(transferred_blob_uuids_.empty());  // Should only be called once.
   transferred_blob_uuids_ = blob_uuids;
 }
 
 void UIThreadExtensionFunction::WriteToConsole(
     content::ConsoleMessageLevel level,
     const std::string& message) {
-  render_frame_host_->Send(new ExtensionMsg_AddMessageToConsole(
-      render_frame_host_->GetRoutingID(), level, message));
+  // Only the main frame handles dev tools messages.
+  WebContents::FromRenderFrameHost(render_frame_host_)
+      ->GetMainFrame()
+      ->AddMessageToConsole(level, message);
 }
 
 IOThreadExtensionFunction::IOThreadExtensionFunction()
     : routing_id_(MSG_ROUTING_NONE) {
 }
 
 IOThreadExtensionFunction::~IOThreadExtensionFunction() {
 }
 
 IOThreadExtensionFunction*
@@ skipping 56 matching lines @@
 
 ExtensionFunction::ResponseAction SyncIOThreadExtensionFunction::Run() {
   return RespondNow(RunSync() ? ArgumentList(results_.Pass()) : Error(error_));
 }
 
 // static
 bool SyncIOThreadExtensionFunction::ValidationFailure(
     SyncIOThreadExtensionFunction* function) {
   return false;
 }