Shuffles and renames ash/common/wm classes

ash/common/wm/fullscreen_window_finder.h

Index: ash/common/wm/fullscreen_window_finder.h
diff --git a/ash/common/wm/fullscreen_window_finder.h b/ash/common/wm/fullscreen_window_finder.h
index ecbe8b7be186f1ead482800530fe42e2548efea5..f5c78b9d501a8e0eb4e0bf14f203cdde19492410 100644
--- a/ash/common/wm/fullscreen_window_finder.h
+++ b/ash/common/wm/fullscreen_window_finder.h
@@ -8,10 +8,11 @@
 #include "ash/ash_export.h"
 
 namespace ash {
-namespace wm {
 
 class WmWindow;
 
+namespace wm {
+
 // Returns the topmost window or one of its transient parents, if any of them
 // are in fullscreen mode. This searches for a window in the root of |context|.
 ASH_EXPORT WmWindow* GetWindowForFullscreenMode(WmWindow* context);