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 88c8045c72ecfcbdee885ed8d2ef8e150f2ed1d9..4b597792552c7b99a0b0f6eb9a9a412c742e917e 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -694,11 +694,6 @@ 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";