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

chrome/browser/printing/print_job.h

 // 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.
 
 #ifndef CHROME_BROWSER_PRINTING_PRINT_JOB_H_
 #define CHROME_BROWSER_PRINTING_PRINT_JOB_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 107 matching lines @@
   void OnNotifyPrintJobEvent(const JobEventDetails& event_details);
 
   // Releases the worker thread by calling Stop(), then broadcasts a JOB_DONE
   // notification.
   void OnDocumentDone();
 
   // Terminates the worker thread in a very controlled way, to work around any
   // eventual deadlock.
   void ControlledWorkerShutdown();
 
-  // Called at shutdown when running a nested message loop.
+  // Called at shutdown when running a nested run loop.
   void Quit();
 
   void HoldUntilStopIsCalled();
 
 #if defined(OS_WIN)
   void OnPdfConversionStarted(int page_count);
   void OnPdfPageConverted(int page_number,
                           float scale_factor,
                           std::unique_ptr<MetafilePlayer> metafile);
 #endif  // defined(OS_WIN)
@@ skipping 21 matching lines @@
   // Is Canceling? If so, try to not cause recursion if on FAILED notification,
   // the notified calls Cancel() again.
   bool is_canceling_;
 
 #if defined(OS_WIN)
   class PdfConversionState;
   std::unique_ptr<PdfConversionState> pdf_conversion_state_;
   std::vector<int> pdf_page_mapping_;
 #endif  // defined(OS_WIN)
 
-  // Used at shutdown so that we can quit a nested message loop.
+  // Used at shutdown so that we can quit a nested run loop.
   base::WeakPtrFactory<PrintJob> quit_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintJob);
 };
 
 // Details for a NOTIFY_PRINT_JOB_EVENT notification. The members may be NULL.
 class JobEventDetails : public base::RefCountedThreadSafe<JobEventDetails> {
  public:
   // Event type.
   enum Type {
@@ skipping 52 matching lines @@
   scoped_refptr<PrintedPage> page_;
   const Type type_;
   int job_id_;
 
   DISALLOW_COPY_AND_ASSIGN(JobEventDetails);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_JOB_H_