Deleted OS_WIN and all Windows specific files from base.

base/test/expectations/expectation.cc

Index: base/test/expectations/expectation.cc
diff --git a/base/test/expectations/expectation.cc b/base/test/expectations/expectation.cc
index 30817791dd2da22d4f612c0959cd0864ae3f9a6c..62d81dd49f2ecb1e6d6be87ef83b8c536810a342 100644
--- a/base/test/expectations/expectation.cc
+++ b/base/test/expectations/expectation.cc
@@ -6,9 +6,7 @@
 
 #include "base/logging.h"
 
-#if defined(OS_WIN)
-#include "base/win/windows_version.h"
-#elif defined(OS_MACOSX) && !defined(OS_IOS)
+#if defined(OS_MACOSX) && !defined(OS_IOS)
 #include "base/mac/mac_util.h"
 #elif defined(OS_LINUX)
 #include "base/sys_info.h"
@@ -89,18 +87,7 @@ bool PlatformFromString(const base::StringPiece& modifier,
 
 Platform GetCurrentPlatform() {
   Platform platform;
-#if defined(OS_WIN)
-  platform.name = "Win";
-  base::win::Version version = base::win::GetVersion();
-  if (version == base::win::VERSION_XP)
-    platform.variant = "XP";
-  else if (version == base::win::VERSION_VISTA)
-    platform.variant = "Vista";
-  else if (version == base::win::VERSION_WIN7)
-    platform.variant = "7";
-  else if (version == base::win::VERSION_WIN8)
-    platform.variant = "8";
-#elif defined(OS_IOS)
+#if defined(OS_IOS)
   platform.name = "iOS";
 #elif defined(OS_MACOSX)
   platform.name = "Mac";