Abstract ToolbarModelImpl dependencies on //content.

chrome/browser/ui/browser_toolbar_model_delegate.h

 // Copyright (c) 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 CHROME_BROWSER_UI_BROWSER_TOOLBAR_MODEL_DELEGATE_H_
 #define CHROME_BROWSER_UI_BROWSER_TOOLBAR_MODEL_DELEGATE_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.h"
 
 class Browser;
 
 // Implementation of ToolbarModelDelegate which uses an instance of
 // Browser in order to fulfil its duties.
 class BrowserToolbarModelDelegate : public ChromeToolbarModelDelegate {
  public:
   explicit BrowserToolbarModelDelegate(Browser* browser);
   ~BrowserToolbarModelDelegate() override;
 
-  // ToolbarModelDelegate:
+  // ChromeToolbarModelDelegate:
   content::WebContents* GetActiveWebContents() const override;
 
  private:
   Browser* browser_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserToolbarModelDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_TOOLBAR_MODEL_DELEGATE_H_