chromeos: Move files in //ash/common to //ash, part 2

ash/wm/switchable_windows.h

Index: ash/wm/switchable_windows.h
diff --git a/ash/common/wm/switchable_windows.h b/ash/wm/switchable_windows.h
similarity index 84%
rename from ash/common/wm/switchable_windows.h
rename to ash/wm/switchable_windows.h
index e960a2f36ce6562063e892f7092ea00dd4c6fead..4fc868a24ef3b8b17ca547b4b78fd40b187d9c96 100644
--- a/ash/common/wm/switchable_windows.h
+++ b/ash/wm/switchable_windows.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_WM_SWITCHABLE_WINDOWS_H_
-#define ASH_COMMON_WM_SWITCHABLE_WINDOWS_H_
+#ifndef ASH_WM_SWITCHABLE_WINDOWS_H_
+#define ASH_WM_SWITCHABLE_WINDOWS_H_
 
 #include <stddef.h>
 
@@ -28,4 +28,4 @@ ASH_EXPORT bool IsSwitchableContainer(const WmWindow* window);
 }  // namespace wm
 }  // namespace ash
 
-#endif  // ASH_COMMON_WM_SWITCHABLE_WINDOWS_H_
+#endif  // ASH_WM_SWITCHABLE_WINDOWS_H_