chromeos: Converts WorkspaceLayoutManager to aura::LayoutManager

ash/wm/fullscreen_window_finder.h

Index: ash/wm/fullscreen_window_finder.h
diff --git a/ash/wm/fullscreen_window_finder.h b/ash/wm/fullscreen_window_finder.h
index 3831eb4d26195a8f273a1d0f0123b4c9c7d021ac..9795d706cc992cae13c84b67f541e9608665e787 100644
--- a/ash/wm/fullscreen_window_finder.h
+++ b/ash/wm/fullscreen_window_finder.h
@@ -7,15 +7,16 @@
 
 #include "ash/ash_export.h"
 
-namespace ash {
-
-class WmWindow;
+namespace aura {
+class Window;
+}
 
+namespace ash {
 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);
+ASH_EXPORT aura::Window* GetWindowForFullscreenMode(aura::Window* context);
 
 }  // namespace wm
 }  // namespace ash