Merge commit '15740edd2ac0026e97699028d07e6b0e773d3643' * commit '15740edd2ac0026e97699028d07e6b0e773d3643': Remove some unused window manager methods.
Merge commit '15740edd2ac0026e97699028d07e6b0e773d3643' * commit '15740edd2ac0026e97699028d07e6b0e773d3643': Remove some unused window manager methods.