Background processes periodically eat up my CPU time on OS X 10.10.4, Yosemite
Today, I checked Chrome and it states that 

Version 43.0.2357.65(64-bit)
Update failed (error: 12)


It appears that my version is out of date by about 3 weeks.  So I believe that Chrome was periodically trying to frantically update and would subsequently fail.  I followed the recommendations of Google and attempted removing the appropriate files, but my version of Chrome would still not update.  

I ended up uninstalling Chrome by dragging the icon from Applications to the trash and removing ~/Library/Google and /Library/Google (not sure why it is here also...).  I reinstalled Chrome and it appears that I now have the most up to date version of Chrome (44.0.2403.103) and I have yet to experience any of those errors or cooking of my cpu.  I have been at my desktop now for 4 hours, so hopefully this issue has been resolved.  I'll also see if I experience anymore kernel panics, hopefully these issues were related and both are resolved.