Backed out 6 changesets (bug 1597373, bug 1598320, bug 1597376) for causing assertion failure in nsContentSecurityUtils.cpp CLOSED TREE

Backed out changeset abb73036e3ae (bug 1597376)
Backed out changeset a0076bbce8f9 (bug 1597376)
Backed out changeset 76055c79cada (bug 1597376)
Backed out changeset 145bc8015c6c (bug 1597376)
Backed out changeset fa0278f155ef (bug 1598320)
Backed out changeset 32711edf1baf (bug 1597373)

--HG--
rename : devtools/client/performance-new/components/DevToolsAndPopup.js => devtools/client/performance-new/components/Perf.js