Bug 1188444 - Factor out StepParser code for creating a new step
Bug 1188444 - Factor out StepParser code for creating a new step

Since we'll be needing to do so in multiple places in future commits.

parkouss/treeherder,deathping1994/treeherder,glenn124f/treeherder,gbrmachado/treeherder,akhileshpillai/treeherder,vaishalitekale/treeherder,vaishalitekale/treeherder,glenn124f/treeherder,parkouss/treeherder,edmorley/treeherder,gbrmachado/treeherder,tojonmz/treeherder,sylvestre/treeherder,sylvestre/treeherder,sylvestre/treeherder,KWierso/treeherder,KWierso/treeherder,parkouss/treeherder,edmorley/treeherder,rail/treeherder,tojonmz/treeherder,tojonmz/treeherder,vaishalitekale/treeherder,sylvestre/treeherder,akhileshpillai/treeherder,avih/treeherder,akhileshpillai/treeherder,tojon/treeherder,rail/treeherder,parkouss/treeherder,deathping1994/treeherder,moijes12/treeherder,wlach/treeherder,avih/treeherder,akhileshpillai/treeherder,gbrmachado/treeherder,tojon/treeherder,rail/treeherder,akhileshpillai/treeherder,moijes12/treeherder,moijes12/treeherder,deathping1994/treeherder,tojonmz/treeherder,KWierso/treeherder,adusca/treeherder,parkouss/treeherder,edmorley/treeherder,moijes12/treeherder,jgraham/treeherder,jgraham/treeherder,KWierso/treeherder,tojon/treeherder,vaishalitekale/treeherder,deathping1994/treeherder,deathping1994/treeherder,glenn124f/treeherder,adusca/treeherder,wlach/treeherder,deathping1994/treeherder,tojonmz/treeherder,adusca/treeherder,tojon/treeherder,adusca/treeherder,moijes12/treeherder,tojonmz/treeherder,jgraham/treeherder,edmorley/treeherder,wlach/treeherder,avih/treeherder,kapy2010/treeherder,wlach/treeherder,kapy2010/treeherder,adusca/treeherder,parkouss/treeherder,moijes12/treeherder,jgraham/treeherder,kapy2010/treeherder,adusca/treeherder,kapy2010/treeherder,glenn124f/treeherder,akhileshpillai/treeherder,avih/treeherder,vaishalitekale/treeherder,rail/treeherder,gbrmachado/treeherder,sylvestre/treeherder,jgraham/treeherder,wlach/treeherder,jgraham/treeherder,rail/treeherder,gbrmachado/treeherder,wlach/treeherder,avih/treeherder,gbrmachado/treeherder,sylvestre/treeherder,rail/treeherder,glenn124f/treeherder,vaishalitekale/treeherder,glenn124f/treeherder,kapy2010/treeherder,avih/treeherder