Pull SecurityStateModel out into a component

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 0ecd6487f1dec5b651b7ca1b2e2932b23a2f8230..87b6ea9cb55898a96789bcda1e2a24c45fc202eb 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -697,11 +697,6 @@ const char kLocalNtpReload[]                = "local-ntp-reload";
 // Makes Chrome default browser
 const char kMakeDefaultBrowser[]            = "make-default-browser";
 
-// Use to opt-in to marking HTTP as non-secure.
-const char kMarkNonSecureAs[]               = "mark-non-secure-as";
-const char kMarkNonSecureAsNeutral[]        = "neutral";
-const char kMarkNonSecureAsNonSecure[]      = "non-secure";
-
 // Forces the maximum disk space to be used by the media cache, in bytes.
 const char kMediaCacheSize[]                = "media-cache-size";