Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp: In function WebGLRenderingContextBase::drawElements m_context is of type GraphicsContextGL which doesn't have any primitiveRestartIndex function. Context should be accessed as GraphicsContextGLOpenGL to call this function otherwise a compile error is generated.
Created attachment 430483 [details] Patch
Patch not needed anymore, primitiveRestartIndex() is not used anymore from WebCore these days.