Quote WebPreferences in namespace webkit_glue.

webkit/glue/webpreferences.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.
 //
 // A struct for managing webkit's settings.
 //
 // Adding new values to this class probably involves updating
 // WebKit::WebSettings, common/render_messages.cc, browser/tab_contents/
 // render_view_host_delegate_helper.cc, and browser/profiles/profile.cc.
 
 #ifndef WEBKIT_GLUE_WEBPREFERENCES_H__
 #define WEBKIT_GLUE_WEBPREFERENCES_H__
 
 #include <string>
 #include <vector>
 
 #include "base/string16.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/glue/webkit_glue_export.h"
 
 namespace WebKit {
 class WebView;
 }
 
+namespace webkit_glue {
+
 struct WEBKIT_GLUE_EXPORT WebPreferences {
   // Map of ISO 15924 four-letter script code to font family.  For example,
   // "Arab" to "My Arabic Font".
   typedef std::vector<std::pair<std::string, string16> > ScriptFontFamilyMap;
 
   string16 standard_font_family;
   string16 fixed_font_family;
   string16 serif_font_family;
   string16 sans_serif_font_family;
   string16 cursive_font_family;
@@ skipping 86 matching lines @@
   bool css_shaders_enabled;
   // We try to keep the default values the same as the default values in
   // chrome, except for the cases where it would require lots of extra work for
   // the embedder to use the same default value.
   WebPreferences();
   ~WebPreferences();
 
   void Apply(WebKit::WebView* web_view) const;
 };
 
+}  // namespace webkit_glue
+
 #endif  // WEBKIT_GLUE_WEBPREFERENCES_H__