Skip mulitple-dispay tests on win8

ash/root_window_controller_unittest.cc

Index: ash/root_window_controller_unittest.cc
diff --git a/ash/root_window_controller_unittest.cc b/ash/root_window_controller_unittest.cc
index 4a3351e5ad479fb008499ff001fcee001c513de9..81a3e62a5e7bd952531508743bf2fbc426487303 100644
--- a/ash/root_window_controller_unittest.cc
+++ b/ash/root_window_controller_unittest.cc
@@ -118,14 +118,10 @@ class RootWindowControllerTest : public test::AshTestBase {
   }
 };
 
-#if defined(OS_WIN)
-// Multiple displays are not supported on Windows Ash. http://crbug.com/165962
-#define MAYBE_MoveWindows_Basic DISABLED_MoveWindows_Basic
-#else
-#define MAYBE_MoveWindows_Basic MoveWindows_Basic
-#endif
-
-TEST_F(RootWindowControllerTest, MAYBE_MoveWindows_Basic) {
+TEST_F(RootWindowControllerTest, MoveWindows_Basic) {
+  if (!SupportsMultipleDisplays())
+    return;
+
   UpdateDisplay("600x600,500x500");
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
   internal::RootWindowController* controller =
@@ -241,14 +237,10 @@ TEST_F(RootWindowControllerTest, MAYBE_MoveWindows_Basic) {
   EXPECT_EQ(internal::kShellWindowId_PanelContainer, panel->parent()->id());
 }
 
-#if defined(OS_WIN)
-// Multiple displays are not supported on Windows Ash. http://crbug.com/165962
-#define MAYBE_MoveWindows_Modal DISABLED_MoveWindows_Modal
-#else
-#define MAYBE_MoveWindows_Modal MoveWindows_Modal
-#endif
+TEST_F(RootWindowControllerTest, MoveWindows_Modal) {
+  if (!SupportsMultipleDisplays())
+    return;
 
-TEST_F(RootWindowControllerTest, MAYBE_MoveWindows_Modal) {
   UpdateDisplay("500x500,500x500");
 
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();