Remove unused content::GetWebKitMajorVersion() and content::GetWebKitMinorVersion().

content/public/common/user_agent.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 CONTENT_PUBLIC_COMMON_USER_AGENT_H_
 #define CONTENT_PUBLIC_COMMON_USER_AGENT_H_
 
 #include <string>
 
 #include "content/common/content_export.h"
 
 namespace content {
 
 // Returns the WebKit version, in the form "major.minor (branch@revision)".
 CONTENT_EXPORT std::string GetWebKitVersion();
 
-// The following 2 functions return the major and minor webkit versions.
-CONTENT_EXPORT int GetWebKitMajorVersion();
-CONTENT_EXPORT int GetWebKitMinorVersion();
-
 CONTENT_EXPORT std::string GetWebKitRevision();
 
 // Builds a User-agent compatible string that describes the OS and CPU type.
 CONTENT_EXPORT std::string BuildOSCpuInfo();
 
 // Helper function to generate a full user agent string from a short
 // product name.
 CONTENT_EXPORT std::string BuildUserAgentFromProduct(
     const std::string& product);
 
 // Helper function to generate a full user agent string given a short
 // product name and some extra text to be added to the OS info.
 CONTENT_EXPORT std::string BuildUserAgentFromProductAndExtraOSInfo(
         const std::string& product,
         const std::string& extra_os_info);
 
 // Builds a full user agent string given a string describing the OS and a
 // product name.
 CONTENT_EXPORT std::string BuildUserAgentFromOSAndProduct(
     const std::string& os_info,
     const std::string& product);
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_USER_AGENT_H_