Pull SecurityStateModel out into a component

components/security_state/security_state_model.cc

Index: components/security_state/security_state_model.cc
diff --git a/chrome/browser/ssl/security_state_model.cc b/components/security_state/security_state_model.cc
similarity index 97%
rename from chrome/browser/ssl/security_state_model.cc
rename to components/security_state/security_state_model.cc
index a2dad817ec753735fe498bc471114f2794802b93..17631dd1b023a49b735f5ca681b72ed8f69e2887 100644
--- a/chrome/browser/ssl/security_state_model.cc
+++ b/components/security_state/security_state_model.cc
@@ -2,21 +2,21 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/ssl/security_state_model.h"
+#include "components/security_state/security_state_model.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram_macros.h"
-#include "chrome/browser/ssl/security_state_model_client.h"
-#include "chrome/common/chrome_switches.h"
+#include "components/security_state/security_state_model_client.h"
+#include "components/security_state/switches.h"
 #include "net/ssl/ssl_cipher_suite_names.h"
 #include "net/ssl/ssl_connection_status_flags.h"
 
+namespace security_state {
+
 namespace {
 
 SecurityStateModel::SecurityLevel GetSecurityLevelForNonSecureFieldTrial() {
-  // TODO(estark): componentize switches::kMarkNonSecureAs.
-  // https://crbug.com/515071
   std::string choice =
       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
           switches::kMarkNonSecureAs);
@@ -276,3 +276,5 @@ bool SecurityStateModel::VisibleSecurityState::operator==(
           displayed_mixed_content == other.displayed_mixed_content &&
           ran_mixed_content == other.ran_mixed_content);
 }
+
+}  // namespace security_state