Merge 91823 - [chromium] REGRESSION(90963): Content layers are not redrawn after losing the compo...

Source/WebCore/platform/graphics/chromium/ContentLayerChromium.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 67 matching lines @@
 ContentLayerChromium::ContentLayerChromium(GraphicsLayerChromium* owner)
     : TiledLayerChromium(owner)
 {
 }
 
 ContentLayerChromium::~ContentLayerChromium()
 {
     cleanupResources();
 }
 
+void ContentLayerChromium::cleanupResources()
+{
+    m_textureUpdater.clear();
+    TiledLayerChromium::cleanupResources();
+}
+
 void ContentLayerChromium::paintContentsIfDirty()
 {
     ASSERT(drawsContent());
     ASSERT(layerRenderer());
 
     updateTileSizeAndTilingOption();
 
     const IntRect& layerRect = visibleLayerRect();
     if (layerRect.isEmpty())
         return;
@@ skipping 22 matching lines @@
     if (layerRenderer()->accelerateDrawing()) {
         m_textureUpdater = LayerTextureUpdaterSkPicture::create(layerRendererContext(), ContentLayerPainter::create(m_owner), layerRenderer()->skiaContext());
         return;
     }
 #endif
     m_textureUpdater = LayerTextureUpdaterBitmap::create(layerRendererContext(), ContentLayerPainter::create(m_owner), layerRenderer()->contextSupportsMapSub());
 }
 
 }
 #endif // USE(ACCELERATED_COMPOSITING)