Ash: Use right edge of screen to scroll maximized windows

ash/wm/window_util.h

Index: ash/wm/window_util.h
diff --git a/ash/wm/window_util.h b/ash/wm/window_util.h
index b33d823d49ec5c6a8362432849efd75b3aa703d8..0066f5eebaa7b32a32a7962587b06993b44d50a7 100644
--- a/ash/wm/window_util.h
+++ b/ash/wm/window_util.h
@@ -6,8 +6,6 @@
 #define ASH_WM_WINDOW_UTIL_H_
 #pragma once
 
-#include <set>
-
 #include "ash/ash_export.h"
 
 namespace aura {
@@ -48,10 +46,6 @@ ASH_EXPORT void MaximizeWindow(aura::Window* window);
 // Restores |window|, which must not be NULL.
 ASH_EXPORT void RestoreWindow(aura::Window* window);
 
-// Returns true if the set of |windows| contains a full-screen window.
-typedef std::set<aura::Window*> WindowSet;
-ASH_EXPORT bool HasFullscreenWindow(const WindowSet& windows);
-
 // Sets whether the window should be open in a split mode. Only applicable when
 // workspaces are used.
 ASH_EXPORT void SetOpenWindowSplit(aura::Window* window, bool value);