Refactor SecurityStateModel/Clients for simplicity and reusability.

components/toolbar/toolbar_model_impl.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_TOOLBAR_TOOLBAR_MODEL_IMPL_H_
 #define COMPONENTS_TOOLBAR_TOOLBAR_MODEL_IMPL_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 12 matching lines @@
 class ToolbarModelImpl : public ToolbarModel {
  public:
   ToolbarModelImpl(ToolbarModelDelegate* delegate,
                    size_t max_url_display_chars);
   ~ToolbarModelImpl() override;
 
  private:
   // ToolbarModel:
   base::string16 GetFormattedURL(size_t* prefix_end) const override;
   GURL GetURL() const override;
-  security_state::SecurityStateModel::SecurityLevel GetSecurityLevel(
+  security_state::SecurityLevel GetSecurityLevel(
       bool ignore_editing) const override;
   gfx::VectorIconId GetVectorIcon() const override;
   base::string16 GetSecureVerboseText() const override;
   base::string16 GetEVCertName() const override;
   bool ShouldDisplayURL() const override;
 
   ToolbarModelDelegate* delegate_;
   const size_t max_url_display_chars_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ToolbarModelImpl);
 };
 
 #endif  // COMPONENTS_TOOLBAR_TOOLBAR_MODEL_IMPL_H_