Abstract ToolbarModelImpl dependencies on //content.

chrome/browser/ui/toolbar/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_TOOLBAR_TOOLBAR_MODEL_DELEGATE_H_
 #define CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_DELEGATE_H_
 
 #include <string>
 
+#include "base/memory/ref_counted.h"
 #include "base/strings/string16.h"
+#include "components/security_state/security_state_model.h"
 
 class GURL;
 
 namespace content {
 class WebContents;
 }
 
+namespace net {
+class X509Certificate;
+}
+
 // Delegate which is used by ToolbarModel class.
 class ToolbarModelDelegate {
  public:
-  // Returns active WebContents.
-  virtual content::WebContents* GetActiveWebContents() const = 0;
+  typedef security_state::SecurityStateModel::SecurityLevel SecurityLevel;

[Peter Kasting, 2016/02/02 23:51:30]

Nit: Prefer type aliases to typedefs

[sdefresne, 2016/02/03 13:14:17]

Done.

 
   // Returns the value to use for Accept-Languages HTTP header when making an
   // HTTP request.
   virtual std::string GetAcceptLanguages() const = 0;
 
   // Formats |url| using AutocompleteInput::FormattedStringWithEquivalentMeaning
   // providing an appropriate AutocompleteSchemeClassifier for the embedder.
   virtual base::string16 FormattedStringWithEquivalentMeaning(
       const GURL& url,
       const base::string16& formatted_url) const = 0;
 
+  // Returns true and set |url| to the current navigation entry URL if it

[Peter Kasting, 2016/02/02 23:51:30]

Nit: sets

+  // exists. Otherwise returns false and leaves |url| unmodified.
+  virtual bool GetURL(GURL* url) const = 0;
+
+  // Returns whether the URL for the current navigation entry should be
+  // in the location bar.

[Peter Kasting, 2016/02/02 23:51:30]

Nit: should be displayed in

[sdefresne, 2016/02/03 13:14:17]

Done.

+  virtual bool ShouldDisplayURL() const = 0;
+
+  // Returns the underlying security level of the page without regard to any
+  // user edits that may be in progress.
+  virtual SecurityLevel GetSecurityLevel() const = 0;
+
+  // Returns search terms as in search::GetSearchTerms() if such terms should
+  // appear in the omnibox (i.e. the page is sufficiently secure, search term
+  // replacement is enabled, editing is not in progress, etc.) given that the
+  // page has a security level of |security_level|.
+  virtual base::string16 GetSearchTerms(SecurityLevel security_level) const = 0;
+
+  // Returns the certificate for the current navigation entry.
+  virtual scoped_refptr<net::X509Certificate> GetCertificate() const = 0;
+
  protected:
   virtual ~ToolbarModelDelegate() {}
 };
 
 #endif  // CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_DELEGATE_H_