Add histograms to compare GetVersionEx() with VerQueryValue() of kernel32

content/browser/browser_main_loop.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 CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 #define CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 144 matching lines @@
 
   void MainMessageLoopRun();
 
   base::FilePath GetStartupTraceFileName(
       const base::CommandLine& command_line) const;
   void InitStartupTracingForDuration(const base::CommandLine& command_line);
   void EndStartupTracing();
 
   bool UsingInProcessGpu() const;
 
+#if defined(OS_WIN)
+  static void RecordWindowsVersionInformation();
+#endif
+
   // Quick reference for initialization order:
   // Constructor
   // Init()
   // EarlyInitialization()
   // InitializeToolkit()
   // PreMainMessageLoopStart()
   // MainMessageLoopStart()
   //   InitializeMainThread()
   // PostMainMessageLoopStart()
   //   InitStartupTracingForDuration()
@@ skipping 89 matching lines @@
   scoped_ptr<TimeZoneMonitor> time_zone_monitor_;
 
   // DO NOT add members here. Add them to the right categories above.
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_