root/chrome/browser/extensions/api/system_cpu/

1. cpu_info_provider.cc
2. cpu_info_provider.h
3. cpu_info_provider_android.cc
4. cpu_info_provider_linux.cc
5. cpu_info_provider_mac.cc
6. cpu_info_provider_win.cc
7. system_cpu_api.cc
8. system_cpu_api.h
9. system_cpu_apitest.cc