Move the offline URL trimming to GetFormattedURL.

ios/chrome/browser/ui/toolbar/toolbar_model_ios.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 IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_IOS_H_
 #define IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_IOS_H_
 
 #import <UIKit/UIKit.h>
 
 #include "components/toolbar/toolbar_model.h"
 
-class ToolbarModelIOS {
+class ToolbarModelIOS : public ToolbarModel {
  public:
-  virtual ~ToolbarModelIOS() {}
-
-  // Returns the |ToolbarModel| contained by this instance.
-  virtual ToolbarModel* GetToolbarModel() = 0;
-
   // Returns true if the current tab is currently loading.
   virtual bool IsLoading() = 0;
 
   // Returns the fraction of the current tab's page load that has completed as a
   // number between 0.0 and 1.0.
   virtual CGFloat GetLoadProgressFraction() = 0;
 
   // Returns true if the current tab can go back in history.
   virtual bool CanGoBack() = 0;
 
@@ skipping 12 matching lines @@
   virtual bool IsCurrentTabBookmarkedByUser() = 0;
 
   // Returns true if the current toolbar should display the hint text.
   virtual bool ShouldDisplayHintText() = 0;
 
  protected:
   ToolbarModelIOS() {}
 };
 
 #endif  // IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_IOS_H_