cros: Remove some OS platform ifdefs from ash

ash/wm/workspace/workspace_event_handler_unittest.cc

Index: ash/wm/workspace/workspace_event_handler_unittest.cc
diff --git a/ash/wm/workspace/workspace_event_handler_unittest.cc b/ash/wm/workspace/workspace_event_handler_unittest.cc
index 525ca393475bde21c670b5a63ba3ea72066618da..249c9c3c76cf625cd81c0113fe0593a53a760444 100644
--- a/ash/wm/workspace/workspace_event_handler_unittest.cc
+++ b/ash/wm/workspace/workspace_event_handler_unittest.cc
@@ -28,10 +28,6 @@
 #include "ui/wm/core/window_util.h"
 #include "ui/wm/public/window_move_client.h"
 
-#if defined(OS_WIN)
-#include "base/win/windows_version.h"
-#endif
-
 namespace ash {
 
 namespace {
@@ -160,12 +156,6 @@ TEST_F(WorkspaceEventHandlerTest, DoubleClickSingleAxisResizeEdge) {
   generator.DoubleClickLeftButton();
   EXPECT_EQ(restored_bounds.ToString(), window->GetBoundsInScreen().ToString());
 
-#if defined(OS_WIN)
-  // Multi display test does not run on Win8 bot. crbug.com/247427.
-  if (!SupportsMultipleDisplays())
-    return;
-#endif
-
   // Verify the double clicking the resize edge works on 2nd display too.
   UpdateDisplay("200x200,400x300");
   gfx::Rect work_area2 = display_manager()->GetSecondaryDisplay().work_area();