Update GPU feature tests to expect no GPU on Windows <=Vista

gpu/config/gpu_test_config.cc

Index: gpu/config/gpu_test_config.cc
diff --git a/gpu/config/gpu_test_config.cc b/gpu/config/gpu_test_config.cc
index d99f71dc45ee700bba01b10d5b0e659abebd9cb7..35a85ce068f2af1e841c1aaf783c688bd5e8645e 100644
--- a/gpu/config/gpu_test_config.cc
+++ b/gpu/config/gpu_test_config.cc
@@ -12,6 +12,8 @@
 
 #if defined(OS_MACOSX)
 #include "base/mac/mac_util.h"
+#elif defined(OS_WIN)
+#include "base/win/windows_version.h"
 #endif
 
 namespace gpu {
@@ -279,8 +281,12 @@ bool GPUTestBotConfig::GpuBlacklistedOnBot() {
   if (CurrentConfigMatches("MAC VMWARE") && base::mac::IsOSLionOrEarlier()) {
     return true;
   }
+#elif defined(OS_WIN)
+  // Blacklist rule #79 disables all Gpu acceleration before Windows 7.
+  if (base::win::GetVersion() <= base::win::VERSION_VISTA) {
+    return true;
+  }
 #endif
-  // TODO(ccameron): This should be true on Windows XP as well.
   return false;
 }