Move GetRootWindowController() to root_window_controller.h

ash/wm/property_util.cc

Index: ash/wm/property_util.cc
diff --git a/ash/wm/property_util.cc b/ash/wm/property_util.cc
index 4c0470a8d28998fdeb505e96f9a4487734acd6fb..5aac996a5d4c7d32da16f620d7d3e678fdf890e2 100644
--- a/ash/wm/property_util.cc
+++ b/ash/wm/property_util.cc
@@ -4,13 +4,9 @@
 
 #include "ash/wm/property_util.h"
 
-#include "ash/ash_export.h"
-#include "ash/root_window_settings.h"
 #include "ash/screen_ash.h"
 #include "ash/wm/window_properties.h"
-#include "ash/wm/window_util.h"
 #include "ui/aura/client/aura_constants.h"
-#include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/gfx/rect.h"
@@ -65,15 +61,4 @@ bool GetWindowAlwaysRestoresToRestoreBounds(const aura::Window* window) {
   return window->GetProperty(internal::kWindowRestoresToRestoreBounds);
 }
 
-internal::RootWindowController* GetRootWindowController(
-    const aura::RootWindow* root_window) {
-  return root_window ?
-      internal::GetRootWindowSettings(root_window)->controller : NULL;
-}
-
-void SetRootWindowController(aura::RootWindow* root_window,
-                             internal::RootWindowController* controller) {
-  internal::GetRootWindowSettings(root_window)->controller = controller;
-}
-
 }  // namespace ash