libdesktop_capture_differ_sse2 is also on darwin
libdesktop_capture_differ_sse2 is also on darwin

From the config file this library has to be used for x64 and x86
machines, however Electron works well even without it. Anyway we should
make the safest choice by including it.

brave/libchromiumcontent,bbondy/libchromiumcontent,atom/libchromiumcontent,zhanggyb/libchromiumcontent,paulcbetts/libchromiumcontent,paulcbetts/libchromiumcontent,brave/libchromiumcontent,electron/libchromiumcontent,atom/libchromiumcontent,electron/libchromiumcontent,zhanggyb/libchromiumcontent,bbondy/libchromiumcontent