Reenable test ExtensionApiTest.UpdateWindowShowState for Windows

chrome/browser/extensions/extension_tabs_apitest.cc

Index: chrome/browser/extensions/extension_tabs_apitest.cc
diff --git a/chrome/browser/extensions/extension_tabs_apitest.cc b/chrome/browser/extensions/extension_tabs_apitest.cc
index 2b748de128396d6b564f4ad046e62be9e40e4a51..6cbd2ba40d8f15ac0c0b93204743a1e13706b04b 100644
--- a/chrome/browser/extensions/extension_tabs_apitest.cc
+++ b/chrome/browser/extensions/extension_tabs_apitest.cc
@@ -32,15 +32,14 @@
 #define MAYBE_UpdateWindowShowState DISABLED_UpdateWindowShowState
 #else
 
-#if defined(USE_AURA) || defined(OS_MACOSX) || defined(OS_WIN)
+#if defined(USE_AURA) || defined(OS_MACOSX)
 // Maximizing/fullscreen popup window doesn't work on aura's managed mode.
 // See bug crbug.com/116305.
 // Mac: http://crbug.com/103912
-// Failing on Win7: http://crbug.com/176683
 #define MAYBE_UpdateWindowShowState DISABLED_UpdateWindowShowState
 #else
 #define MAYBE_UpdateWindowShowState UpdateWindowShowState
-#endif  // defined(USE_AURA) || defined(OS_MACOSX) || defined(OS_WIN)
+#endif  // defined(USE_AURA) || defined(OS_MACOSX)
 
 // TODO(linux_aura) http://crbug.com/163931
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(USE_AURA)