Report Windows build and patch number in the component updater checks.

base/win/windows_version.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 BASE_WIN_WINDOWS_VERSION_H_
 #define BASE_WIN_WINDOWS_VERSION_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 38 matching lines @@
 
 // A singleton that can be used to query various pieces of information about the
 // OS and process state. Note that this doesn't use the base Singleton class, so
 // it can be used without an AtExitManager.
 class BASE_EXPORT OSInfo {
  public:
   struct VersionNumber {
     int major;
     int minor;
     int build;
+    int patch;
   };
 
   struct ServicePack {
     int major;
     int minor;
   };
 
   // The processor architecture this copy of Windows natively uses.  For
   // example, given an x64-capable processor, we have three possibilities:
   //   32-bit Chrome running on 32-bit Windows:           X86_ARCHITECTURE
@@ skipping 61 matching lines @@
 };
 
 // Because this is by far the most commonly-requested value from the above
 // singleton, we add a global-scope accessor here as syntactic sugar.
 BASE_EXPORT Version GetVersion();
 
 }  // namespace win
 }  // namespace base
 
 #endif  // BASE_WIN_WINDOWS_VERSION_H_