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

components/printing/renderer/print_web_view_helper.cc

 // Copyright (c) 2012 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 "components/printing/renderer/print_web_view_helper.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 971 matching lines @@
     Print(web_frame, blink::WebNode(), true /* is_scripted? */);
 #endif
   }
   // WARNING: |this| may be gone at this point. Do not do any more work here and
   // just return.
 }
 
 bool PrintWebViewHelper::OnMessageReceived(const IPC::Message& message) {
   // The class is not designed to handle recursive messages. This is not
   // expected during regular flow. However, during rendering of content for
-  // printing, lower level code may run nested message loop. E.g. PDF may has
+  // printing, lower level code may run nested run loop. E.g. PDF may has
   // script to show message box http://crbug.com/502562. In that moment browser
   // may receive updated printer capabilities and decide to restart print
   // preview generation. When this happened message handling function may
   // choose to ignore message or safely crash process.
   ++ipc_nesting_level_;
 
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PrintWebViewHelper, message)
 #if BUILDFLAG(ENABLE_BASIC_PRINTING)
     IPC_MESSAGE_HANDLER(PrintMsg_PrintPages, OnPrintPages)
@@ skipping 1374 matching lines @@
       blink::WebConsoleMessage::kLevelWarning, message));
   return false;
 }
 
 void PrintWebViewHelper::ScriptingThrottler::Reset() {
   // Reset counter on successful print.
   count_ = 0;
 }
 
 }  // namespace printing