Revert 98735 - Source/WebCore: The HTML5 video element in Safari does not respect "visibility:hid...

Source/WebCore/platform/graphics/GraphicsLayer.cpp

 /*
  * Copyright (C) 2009 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 59 matching lines @@
     , m_anchorPoint(0.5f, 0.5f, 0)
     , m_opacity(1)
     , m_zPosition(0)
     , m_backgroundColorSet(false)
     , m_contentsOpaque(false)
     , m_preserves3D(false)
     , m_backfaceVisibility(true)
     , m_usingTiledLayer(false)
     , m_masksToBounds(false)
     , m_drawsContent(false)
-    , m_contentsVisible(true)
     , m_acceleratesDrawing(false)
     , m_maintainsPixelAlignment(false)
     , m_appliesPageScale(false)
     , m_paintingPhase(GraphicsLayerPaintAll)
     , m_contentsOrientation(CompositingCoordinatesTopDown)
     , m_parent(0)
     , m_maskLayer(0)
     , m_replicaLayer(0)
     , m_replicatedLayer(0)
     , m_repaintCount(0)
@@ skipping 407 matching lines @@
     if (m_preserves3D) {
         writeIndent(ts, indent + 1);
         ts << "(preserves3D " << m_preserves3D << ")\n";
     }
 
     if (m_drawsContent) {
         writeIndent(ts, indent + 1);
         ts << "(drawsContent " << m_drawsContent << ")\n";
     }
 
-    if (!m_contentsVisible) {
-        writeIndent(ts, indent + 1);
-        ts << "(contentsVisible " << m_contentsVisible << ")\n";
-    }
-
     if (!m_backfaceVisibility) {
         writeIndent(ts, indent + 1);
         ts << "(backfaceVisibility " << (m_backfaceVisibility ? "visible" : "hidden") << ")\n";
     }
 
     if (behavior & LayerTreeAsTextDebug) {
         writeIndent(ts, indent + 1);
         ts << "(";
         if (m_client)
             ts << "client " << static_cast<void*>(m_client);
@@ skipping 71 matching lines @@
 {
     if (!layer)
         return;
 
     WTF::String output = layer->layerTreeAsText(LayerTreeAsTextDebug);
     fprintf(stderr, "%s\n", output.utf8().data());
 }
 #endif
 
 #endif // USE(ACCELERATED_COMPOSITING)