Replace "nested message loop" with "nested run loop" in comments.

ui/views/controls/menu/menu_runner_impl.cc

 // Copyright 2014 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 "ui/views/controls/menu/menu_runner_impl.h"
 
 #include "build/build_config.h"
 #include "ui/native_theme/native_theme.h"
 #include "ui/views/controls/button/menu_button.h"
 #include "ui/views/controls/menu/menu_controller.h"
@@ skipping 29 matching lines @@
 
 bool MenuRunnerImpl::IsRunning() const {
   return running_;
 }
 
 void MenuRunnerImpl::Release() {
   if (running_) {
     if (delete_after_run_)
       return;  // We already canceled.
 
-    // The menu is running a nested message loop, we can't delete it now
+    // The menu is running a nested run loop, we can't delete it now
     // otherwise the stack would be in a really bad state (many frames would
     // have deleted objects on them). Instead cancel the menu, when it returns
     // Holder will delete itself.
     delete_after_run_ = true;
 
     // Swap in a different delegate. That way we know the original MenuDelegate
     // won't be notified later on (when it's likely already been deleted).
     if (!empty_delegate_.get())
       empty_delegate_.reset(new MenuDelegate());
     menu_->set_delegate(empty_delegate_.get());
@@ skipping 135 matching lines @@
 #if defined(OS_WIN)
   // This is only needed on Windows.
   if (!show_mnemonics)
     show_mnemonics = ui::win::IsAltPressed();
 #endif
   return show_mnemonics;
 }
 
 }  // namespace internal
 }  // namespace views