Migrate WTF::Deque::first() to ::front()

third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 617 matching lines @@
     // Always check isParsing first as m_document may be null. Surprisingly,
     // isScheduledForResume() may be set here as a result of
     // processTokenizedChunkFromBackgroundParser running arbitrary javascript
     // which invokes nested event loops. (e.g. inspector breakpoints)
     checkIfBodyStylesheetAdded();
     if (!isParsing() || isPaused() || isScheduledForResume())
       break;
 
     if (m_speculations.isEmpty() ||
         m_parserScheduler->yieldIfNeeded(
-            session, m_speculations.first()->startingScript))
+            session, m_speculations.front()->startingScript))
       break;
   }
 }
 
 void HTMLDocumentParser::forcePlaintextForTextDocument() {
   if (shouldUseThreading()) {
     // This method is called before any data is appended, so we have to start
     // the background parser ourselves.
     if (!m_haveBackgroundParser)
       startBackgroundParser();
@@ skipping 671 matching lines @@
     successHistogram.count(duration);
   } else {
     DEFINE_STATIC_LOCAL(
         CustomCountHistogram, failureHistogram,
         ("PreloadScanner.DocumentWrite.ExecutionTime.Failure", 1, 10000, 50));
     failureHistogram.count(duration);
   }
 }
 
 }  // namespace blink