Revert of Refactor connection_security into SecurityStateModel

chrome/browser/ui/toolbar/chrome_toolbar_model.h

Index: chrome/browser/ui/toolbar/chrome_toolbar_model.h
diff --git a/chrome/browser/ui/toolbar/chrome_toolbar_model.h b/chrome/browser/ui/toolbar/chrome_toolbar_model.h
index e6320aa1a2af08453cd10326d5766341af06c751..aa14d6912f589129374eb579c2d3b676ddd51105 100644
--- a/chrome/browser/ui/toolbar/chrome_toolbar_model.h
+++ b/chrome/browser/ui/toolbar/chrome_toolbar_model.h
@@ -5,11 +5,11 @@
 #ifndef CHROME_BROWSER_UI_TOOLBAR_CHROME_TOOLBAR_MODEL_H_
 #define CHROME_BROWSER_UI_TOOLBAR_CHROME_TOOLBAR_MODEL_H_
 
-#include "chrome/browser/ssl/security_state_model.h"
+#include "chrome/browser/ssl/connection_security.h"
 #include "components/toolbar/toolbar_model.h"
 
 // This class is a //chrome-specific extension of the ToolbarModel interface.
-// TODO(blundell): If SecurityStateModel::SecurityLevel gets componentized,
+// TODO(blundell): If connection_security::SecurityLevel gets componentized,
 // GetSecurityLevel() can be folded into ToolbarModel and this class can go
 // away. crbug.com/515071
 class ChromeToolbarModel : public ToolbarModel {
@@ -20,7 +20,7 @@
   // |ignore_editing| is true, the result reflects the underlying state of the
   // page without regard to any user edits that may be in progress in the
   // omnibox.
-  virtual SecurityStateModel::SecurityLevel GetSecurityLevel(
+  virtual connection_security::SecurityLevel GetSecurityLevel(
       bool ignore_editing) const = 0;
 
  protected: