Merge 78921

Source/WebCore/html/canvas/WebGLRenderingContext.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 419 matching lines @@
         m_isDepthStencilSupported = m_context->getExtensions()->supports("GL_OES_packed_depth_stencil");
     } else {
         m_isGLES2NPOTStrict = !m_context->getExtensions()->supports("GL_ARB_texture_non_power_of_two");
         m_isDepthStencilSupported = m_context->getExtensions()->supports("GL_EXT_packed_depth_stencil");
     }
 }
 
 WebGLRenderingContext::~WebGLRenderingContext()
 {
     detachAndRemoveAllObjects();
+    if (m_webkitLoseContext)
+        m_webkitLoseContext->contextDestroyed();
 }
 
 void WebGLRenderingContext::markContextChanged()
 {
 #if USE(ACCELERATED_COMPOSITING)
     RenderBox* renderBox = canvas()->renderBox();
     if (renderBox && renderBox->hasLayer() && renderBox->layer()->hasAcceleratedCompositing())
         renderBox->layer()->contentChanged(RenderLayer::CanvasChanged);
     else {
 #endif
@@ skipping 4174 matching lines @@
 
 void WebGLRenderingContext::LRUImageBufferCache::bubbleToFront(int idx)
 {
     for (int i = idx; i > 0; --i)
         m_buffers[i].swap(m_buffers[i-1]);
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(3D_CANVAS)