Avoid recreating constant vertex buffers unnecessarily. To avoid continually recreating constant vertex buffers instead use streaming buffers to hold that data. BUG= TEST= Review URL: http://codereview.appspot.com/4437072 git-svn-id: https://angleproject.googlecode.com/svn/trunk@744 736b8ea6-26fd-11df-bfd4-992fa37f6226