Move SecurityLevel into a class of its own

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 2e911edf5570df978de6c07d409edcac0f520028..c3bf28035a5044bfaace74c2072afd2a87e51232 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -2655,6 +2655,8 @@
       'browser/ssl/chrome_ssl_host_state_delegate.h',
       'browser/ssl/chrome_ssl_host_state_delegate_factory.cc',
       'browser/ssl/chrome_ssl_host_state_delegate_factory.h',
+      'browser/ssl/security_level_policy.cc',
+      'browser/ssl/security_level_policy.h',
       'browser/ssl/ssl_blocking_page.cc',
       'browser/ssl/ssl_blocking_page.h',
       'browser/ssl/ssl_cert_reporter.h',
@@ -3810,10 +3812,10 @@
         },
         {
           # GN: //chrome/android:chrome_android_java_enums_srcjar
-          'target_name': 'toolbar_model_security_levels_java',
+          'target_name': 'security_level_policy_security_levels_java',
           'type': 'none',
           'variables': {
-            'source_file': 'browser/ui/toolbar/toolbar_model.h',
+            'source_file': 'browser/ssl/security_level_policy.h',
           },
           'includes': [ '../build/android/java_cpp_enum.gypi' ],
         },