Add a feature flag for the security verbose

chrome/browser/ui/location_bar/location_bar.h

Index: chrome/browser/ui/location_bar/location_bar.h
diff --git a/chrome/browser/ui/location_bar/location_bar.h b/chrome/browser/ui/location_bar/location_bar.h
index 2cdd71346664325d68554e6f06e6cb104904911c..e3e316fac94e7605652021d8212970deb23f9a09 100644
--- a/chrome/browser/ui/location_bar/location_bar.h
+++ b/chrome/browser/ui/location_bar/location_bar.h
@@ -32,6 +32,10 @@ class Extension;
 // location bar to be mocked for testing.
 class LocationBar {
  public:
+  // The parameters for the Security Chip Feature.
+  static const char kSecurityChipFeatureVisibilityParam[];
+  static const char kSecurityChipFeatureAnimationParam[];
+
   explicit LocationBar(Profile* profile);
 
   // Shows the first run bubble anchored to the location bar.