Abstract ToolbarModelImpl dependencies on //content.

chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.h

 // Copyright 2016 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_TOOLBAR_CHROME_TOOLBAR_MODEL_DELEGATE_H_
 #define CHROME_BROWSER_UI_TOOLBAR_CHROME_TOOLBAR_MODEL_DELEGATE_H_
 
 #include "chrome/browser/ui/toolbar/toolbar_model_delegate.h"
 
 class Profile;
 
 namespace content {
+class NavigationEntry;
 class NavigationController;
 }
 
 // Partial implementation of ToolbarModelDelegate using //chrome API.
 class ChromeToolbarModelDelegate : public ToolbarModelDelegate {
  public:
+  // Returns active WebContents.
+  virtual content::WebContents* GetActiveWebContents() const = 0;
+
+ protected:
+  ~ChromeToolbarModelDelegate() override;
+
+ private:
   // ToolbarModelDelegate implementation:
   std::string GetAcceptLanguages() const override;
   base::string16 FormattedStringWithEquivalentMeaning(
       const GURL& url,
       const base::string16& formatted_url) const override;
+  bool GetURL(GURL* url) const override;
+  bool ShouldDisplayURL() const override;
+  SecurityLevel GetSecurityLevel() const override;
+  base::string16 GetSearchTerms(SecurityLevel security_level) const override;
+  scoped_refptr<net::X509Certificate> GetCertificate() const override;
 
- protected:
-  ~ChromeToolbarModelDelegate() override;
-
- private:
   // Returns the navigation controller used to retrive the navigation entry
   // from which the states are retrieved. If this returns null, default values
   // are used.
   content::NavigationController* GetNavigationController() const;
 
+  // Helper method to extract the navigation entry from the navigation
+  // controller.
+  content::NavigationEntry* GetNavigationEntry() const;
+
   // Helper method to extract the profile from the navigation controller.
   Profile* GetProfile() const;
 };
 
 #endif  // CHROME_BROWSER_UI_TOOLBAR_CHROME_TOOLBAR_MODEL_DELEGATE_H_