Renaming Context::mDepthStencilDirty flag to mDepthStencilInitialized to avoid breaking consistency http://codereview.appspot.com/2187041/ (Having trouble checking it in with gcl so going straight to subversion) git-svn-id: https://angleproject.googlecode.com/svn/trunk@420 736b8ea6-26fd-11df-bfd4-992fa37f6226