crbug.com/127841 - Request Tablet Site on CB with touch screen.

webkit/glue/user_agent.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 WEBKIT_GLUE_USER_AGENT_H_
 #define WEBKIT_GLUE_USER_AGENT_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 14 matching lines @@
 // Sets the OS component of the user agent (e.g. "4.0.4; Galaxy Nexus
 // BUILD/IMM76K")
 // TODO(yfriedman): Remove this ASAP (http://crbug.com/131312)
 void SetUserAgentOSInfo(const std::string& os_info);
 #endif
 
 // Helper function to generate a full user agent string from a short
 // product name.
 std::string BuildUserAgentFromProduct(const std::string& product);
 
+// Helper function to generate user agent string from current
+// user agent string by replacing a part so to appear to be
+// a tablet device (for Request Tablet Site)
+std::string BuildUserAgentOverrideForTabletSiteFromUserAgent(
+    const std::string& user_agent);
+
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_USER_AGENT_H_