Rename WebKit namespace to blink (part 3)

content/public/renderer/web_preferences.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 CONTENT_PUBLIC_RENDERER_WEB_PREFERENCES_H_
 #define CONTENT_PUBLIC_RENDERER_WEB_PREFERENCES_H_
 
 #include "content/common/content_export.h"
 
 struct WebPreferences;
 
-namespace WebKit {
+namespace blink {
 class WebView;
 }
 
 namespace content {
 
 CONTENT_EXPORT void ApplyWebPreferences(const WebPreferences& prefs,
-                                        WebKit::WebView* web_view);
+                                        blink::WebView* web_view);
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_WEB_PREFERENCES_H_