Remove Apple's unused implementation of private browsing from WebCore

Source/WebCore/html/HTMLMediaElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 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 266 matching lines @@
     , m_lastTextTrackUpdateTime(-1)
     , m_textTracks(0)
     , m_ignoreTrackDisplayUpdate(0)
 #endif
 #if ENABLE(WEB_AUDIO)
     , m_audioSourceNode(0)
 #endif
 {
     LOG(Media, "HTMLMediaElement::HTMLMediaElement");
     document->registerForMediaVolumeCallbacks(this);
-    document->registerForPrivateBrowsingStateChangedCallbacks(this);
 
     if (document->settings() && document->settings()->mediaPlaybackRequiresUserGesture()) {
         addBehaviorRestriction(RequireUserGestureForRateChangeRestriction);
         addBehaviorRestriction(RequireUserGestureForLoadRestriction);
     }
 
     setHasCustomStyleCallbacks();
     addElementToDocumentMap(this, document);
 
 #if ENABLE(VIDEO_TRACK)
     document->registerForCaptionPreferencesChangedCallbacks(this);
 #endif
 }
 
 HTMLMediaElement::~HTMLMediaElement()
 {
     LOG(Media, "HTMLMediaElement::~HTMLMediaElement");
     if (m_isWaitingUntilMediaCanStart)
         document()->removeMediaCanStartListener(this);
     setShouldDelayLoadEvent(false);
     document()->unregisterForMediaVolumeCallbacks(this);
-    document()->unregisterForPrivateBrowsingStateChangedCallbacks(this);
 #if ENABLE(VIDEO_TRACK)
     document()->unregisterForCaptionPreferencesChangedCallbacks(this);
     if (m_textTracks)
         m_textTracks->clearOwner();
     if (m_textTracks) {
         for (unsigned i = 0; i < m_textTracks->length(); ++i)
             m_textTracks->item(i)->clearClient();
     }
 #endif
 
@@ skipping 579 matching lines @@
     LOG(Media, "HTMLMediaElement::loadResource - m_currentSrc -> %s", urlForLoggingMedia(m_currentSrc).utf8().data());
 
 #if ENABLE(MEDIA_STREAM)
     if (MediaStreamRegistry::registry().lookupMediaStreamDescriptor(url.string()))
         removeBehaviorRestriction(RequireUserGestureForRateChangeRestriction);
 #endif
 
     if (m_sendProgressEvents) 
         startProgressEventTimer();
 
-    Settings* settings = document()->settings();
-    bool privateMode = !settings || settings->privateBrowsingEnabled();
-    m_player->setPrivateBrowsingMode(privateMode);
-
     // Reset display mode to force a recalculation of what to show because we are resetting the player.
     setDisplayMode(Unknown);
 
     if (!autoplay())
         m_player->setPreload(m_preload);
     m_player->setPreservesPitch(m_webkitPreservesPitch);
 
     if (fastHasAttribute(mutedAttr))
         m_muted = true;
     updateVolume();
@@ skipping 3137 matching lines @@
 void HTMLMediaElement::clearMediaCacheForSite(const String& site)
 {
     MediaPlayer::clearMediaCacheForSite(site);
 }
 
 void HTMLMediaElement::resetMediaEngines()
 {
     MediaPlayer::resetMediaEngines();
 }
 
-void HTMLMediaElement::privateBrowsingStateDidChange()
-{
-    if (!m_player)
-        return;
-
-    Settings* settings = document()->settings();
-    bool privateMode = !settings || settings->privateBrowsingEnabled();
-    LOG(Media, "HTMLMediaElement::privateBrowsingStateDidChange(%s)", boolString(privateMode));
-    m_player->setPrivateBrowsingMode(privateMode);
-}
-
 MediaControls* HTMLMediaElement::mediaControls() const
 {
     return toMediaControls(userAgentShadowRoot()->firstChild());
 }
 
 bool HTMLMediaElement::hasMediaControls() const
 {
     if (ShadowRoot* userAgent = userAgentShadowRoot()) {
         Node* node = userAgent->firstChild();
         ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isMediaControls());
@@ skipping 472 matching lines @@
     info.addMember(m_mediaController, "mediaController");
 
 #if ENABLE(WEB_AUDIO)
     info.addMember(m_audioSourceNode, "audioSourceNode");
 #endif
 
 }
 
 }
 #endif