Make PermissionRequest::GetIconId return different types

chrome/browser/permissions/mock_permission_request.h

 // Copyright 2014 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_PERMISSIONS_MOCK_PERMISSION_REQUEST_H_
 #define CHROME_BROWSER_PERMISSIONS_MOCK_PERMISSION_REQUEST_H_
 
 #include "base/strings/string16.h"
 #include "chrome/browser/permissions/permission_request.h"
 #include "url/gurl.h"
 
 class MockPermissionRequest : public PermissionRequest {
  public:
   MockPermissionRequest();
   explicit MockPermissionRequest(const std::string& text);
   MockPermissionRequest(const std::string& text,
                         PermissionRequestType request_type,
                         PermissionRequestGestureType gesture_type);
   MockPermissionRequest(const std::string& text, const GURL& url);
   MockPermissionRequest(const std::string& text,
                         const std::string& accept_label,
                         const std::string& deny_label);
 
   ~MockPermissionRequest() override;
 
-  int GetIconId() const override;
+  IconId GetIconId() const override;
   base::string16 GetMessageTextFragment() const override;
   GURL GetOrigin() const override;
 
   void PermissionGranted() override;
   void PermissionDenied() override;
   void Cancelled() override;
   void RequestFinished() override;
   PermissionRequestType GetPermissionRequestType() const override;
   PermissionRequestGestureType GetGestureType() const override;
 
@@ skipping 14 matching lines @@
   PermissionRequestType request_type_;
   PermissionRequestGestureType gesture_type_;
 
   base::string16 text_;
   base::string16 accept_label_;
   base::string16 deny_label_;
   GURL origin_;
 };
 
 #endif  // CHROME_BROWSER_PERMISSIONS_MOCK_PERMISSION_REQUEST_H_