Merge 91736 - Source/WebCore: Removed support for the GL_latch_CHROMIUM extension which Chromium ...

Source/WebCore/platform/graphics/chromium/DrawingBufferChromium.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 96 matching lines @@
         return;
 
     clear();
 }
 
 #if USE(ACCELERATED_COMPOSITING)
 void DrawingBuffer::publishToPlatformLayer()
 {
     if (!m_context)
         return;
-        
+
     if (m_callback)
         m_callback->willPublish();
     if (multisample())
         commit();
     unsigned parentTexture = m_platformLayer->textureId();
     // We do the copy in the canvas' (child) context so that it executes in the correct order relative to
     // other commands in the child context. This ensures that the parent texture always contains a complete
-    // frame and not some intermediate result. LayerRendererChromium uses glSetLatch to make sure the child
-    // context completes before the parent context consumes the texture.
+    // frame and not some intermediate result.
     m_context->makeContextCurrent();
 #if USE(SKIA)
     if (m_grContext)
         m_grContext->flush(0);
 #endif
     static_cast<Extensions3DChromium*>(m_context->getExtensions())->copyTextureToParentTextureCHROMIUM(m_colorBuffer, parentTexture);
     m_context->flush();
 }
 #endif
 
@@ skipping 45 matching lines @@
     desc->fWidth = m_size.width();
     desc->fHeight = m_size.height();
     desc->fConfig = kRGBA_8888_GrPixelConfig;
 
     desc->fStencilBits = (m_depthStencilBuffer || m_stencilBuffer) ? 8 : 0;
 }
 
 #endif
 
 }