Don't update progress when Frame::isLoading() is false

third_party/WebKit/Source/core/loader/ProgressTracker.cpp

 /*
  * Copyright (C) 2007 Apple 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 154 matching lines @@
   if (!item)
     return;
 
   item->bytesReceived += length;
   if (item->bytesReceived > item->estimatedLength)
     item->estimatedLength = item->bytesReceived * 2;
   maybeSendProgress();
 }
 
 void ProgressTracker::maybeSendProgress() {
+  if (!m_frame->isLoading())
+    return;
+
   m_progressValue = initialProgressValue + 0.1;  // +0.1 for committing
   if (m_finishedParsing)
     m_progressValue += 0.2;
 
   long long bytesReceived = 0;
   long long estimatedBytesForPendingRequests = 0;
   for (const auto& progressItem : m_progressItems) {
     bytesReceived += progressItem.value->bytesReceived;
     estimatedBytesForPendingRequests += progressItem.value->estimatedLength;
   }
@@ skipping 43 matching lines @@
 void ProgressTracker::completeProgress(unsigned long identifier) {
   ProgressItem* item = m_progressItems.get(identifier);
   if (!item)
     return;
 
   item->estimatedLength = item->bytesReceived;
   maybeSendProgress();
 }
 
 }  // namespace blink