Have MixedContentChecker and ProgressTracker keep a LocalFrame Member.

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 44 matching lines @@
     WTF_MAKE_NONCOPYABLE(ProgressItem); WTF_MAKE_FAST_ALLOCATED;
 public:
     ProgressItem(long long length)
         : bytesReceived(0)
         , estimatedLength(length) { }
 
     long long bytesReceived;
     long long estimatedLength;
 };
 
+PassOwnPtrWillBeRawPtr<ProgressTracker> ProgressTracker::create(LocalFrame* frame)
+{
+    return adoptPtrWillBeNoop(new ProgressTracker(frame));
+}
+
 ProgressTracker::ProgressTracker(LocalFrame* frame)
     : m_frame(frame)
     , m_inProgress(false)
     , m_totalPageAndResourceBytesToLoad(0)
     , m_totalBytesReceived(0)
     , m_lastNotifiedProgressValue(0)
     , m_lastNotifiedProgressTime(0)
     , m_progressNotificationInterval(0.02)
     , m_progressNotificationTimeInterval(0.1)
     , m_finalProgressChangedSent(false)
     , m_progressValue(0)
 {
 }
 
 ProgressTracker::~ProgressTracker()
 {
+    ASSERT(!m_inProgress);
+}
+
+void ProgressTracker::trace(Visitor* visitor)
+{
+    visitor->trace(m_frame);
+}
+
+void ProgressTracker::dispose()
+{
     if (m_inProgress)
         progressCompleted();
 }
 
-PassOwnPtr<ProgressTracker> ProgressTracker::create(LocalFrame* frame)
-{
-    return adoptPtr(new ProgressTracker(frame));
-}
-
 double ProgressTracker::estimatedProgress() const
 {
     return m_progressValue;
 }
 
 void ProgressTracker::reset()
 {
     m_progressItems.clear();
 
     m_totalPageAndResourceBytesToLoad = 0;
@@ skipping 108 matching lines @@
         return;
 
     // Adjust the total expected bytes to account for any overage/underage.
     long long delta = item->bytesReceived - item->estimatedLength;
     m_totalPageAndResourceBytesToLoad += delta;
 
     m_progressItems.remove(identifier);
 }
 
 }