Clean up the PermissionInfoBarDelegate hierarchy.

chrome/browser/media/protected_media_identifier_infobar_delegate_android.h

 // Copyright 2013 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_MEDIA_PROTECTED_MEDIA_IDENTIFIER_INFOBAR_DELEGATE_ANDROID_H_
 #define CHROME_BROWSER_MEDIA_PROTECTED_MEDIA_IDENTIFIER_INFOBAR_DELEGATE_ANDROID_H_
 
 #include <string>
 
 #include "base/macros.h"
 #include "chrome/browser/permissions/permission_infobar_delegate.h"
 
 class InfoBarService;
 
 class ProtectedMediaIdentifierInfoBarDelegateAndroid
-    : public PermissionInfobarDelegate {
+    : public PermissionInfoBarDelegate {
  public:
   // Creates a protected media identifier infobar and delegate and adds the
   // infobar to |infobar_service|.  Returns the infobar if it was successfully
   // added.
   static infobars::InfoBar* Create(InfoBarService* infobar_service,
                                    const GURL& requesting_frame,
                                    bool user_gesture,
                                    Profile* profile,
                                    const PermissionSetCallback& callback);
 
  protected:
   ProtectedMediaIdentifierInfoBarDelegateAndroid(
       const GURL& requesting_frame,
       bool user_gesture,
       Profile* profile,
       const PermissionSetCallback& callback);
   ~ProtectedMediaIdentifierInfoBarDelegateAndroid() override;
 
  private:
-  // ConfirmInfoBarDelegate:
+  // PermissionInfoBarDelegate:
   infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
   int GetIconId() const override;
-  int GetMessageResourceId() const override;
   base::string16 GetLinkText() const override;
   GURL GetLinkURL() const override;
-
-  GURL requesting_frame_;
+  int GetMessageResourceId() const override;
 
   DISALLOW_COPY_AND_ASSIGN(ProtectedMediaIdentifierInfoBarDelegateAndroid);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_PROTECTED_MEDIA_IDENTIFIER_INFOBAR_DELEGATE_ANDROID_H_