Update #4499 graphing code to ggplot2 0.9 and .pdf.
Update #4499 graphing code to ggplot2 0.9 and .pdf.

sysrqb/metrics-tasks,gsathya/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,sysrqb/metrics-tasks