CoordinatedGraphicsArgumentCoders uses the CustomFilterOperation, but it will never receive it anymore. It needs to be updated to use the ValidatedCustomFilterOperation instead.
Thank you for filing this bug. I can do it. Could I do?
Created attachment 172128 [details] Patch V1
Comment on attachment 172128 [details] Patch V1 View in context: https://bugs.webkit.org/attachment.cgi?id=172128&action=review LGTM > Source/WebCore/platform/graphics/filters/CustomFilterValidatedProgram.h:83 > + const String& validatedVertexShader() const { ASSERT(m_isInitialized); return m_validatedVertexShader; } > + const String& validatedFragmentShader() const { ASSERT(m_isInitialized); return m_validatedFragmentShader; } These functions deserve some more line breaks :)
Landed manually in http://trac.webkit.org/changeset/133777.