Shuffles and renames ash/common/wm classes

ash/common/wm_window_tracker.h

Index: ash/common/wm_window_tracker.h
diff --git a/ash/common/wm/wm_window_tracker.h b/ash/common/wm_window_tracker.h
similarity index 57%
rename from ash/common/wm/wm_window_tracker.h
rename to ash/common/wm_window_tracker.h
index cb3840ce37bb80926765b576758cd8fcddd69cff..65c1eb1a2c5d70f37290de2cb9e1098658b4e47c 100644
--- a/ash/common/wm/wm_window_tracker.h
+++ b/ash/common/wm_window_tracker.h
@@ -2,19 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_WM_WM_WINDOW_TRACKER_H_
-#define ASH_COMMON_WM_WM_WINDOW_TRACKER_H_
+#ifndef ASH_COMMON_WM_WINDOW_TRACKER_H_
+#define ASH_COMMON_WM_WINDOW_TRACKER_H_
 
-#include "ash/common/wm/wm_window.h"
-#include "ash/common/wm/wm_window_observer.h"
+#include "ash/common/wm_window.h"
+#include "ash/common/wm_window_observer.h"
 #include "ui/base/window_tracker_template.h"
 
 namespace ash {
-namespace wm {
 
 using WmWindowTracker = ui::WindowTrackerTemplate<WmWindow, WmWindowObserver>;
 
-}  // namespace wm
 }  // namespace ash
 
-#endif  // ASH_COMMON_WM_WM_WINDOW_TRACKER_H_
+#endif  // ASH_COMMON_WM_WINDOW_TRACKER_H_