Ash: Use right edge of screen to scroll maximized windows

ash/wm/window_util.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/wm/window_util.h"
 
 #include "ash/shell.h"
 #include "ash/wm/activation_controller.h"
 #include "ui/aura/client/activation_client.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 65 matching lines @@
 }
 
 void MaximizeWindow(aura::Window* window) {
   window->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MAXIMIZED);
 }
 
 void RestoreWindow(aura::Window* window) {
   window->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_NORMAL);
 }
 
-bool HasFullscreenWindow(const WindowSet& windows) {
-  for (WindowSet::const_iterator i = windows.begin(); i != windows.end(); ++i) {
-    if ((*i)->GetProperty(aura::client::kShowStateKey)
-        == ui::SHOW_STATE_FULLSCREEN) {
-      return true;
-    }
-  }
-  return false;
-}
-
 void SetOpenWindowSplit(aura::Window* window, bool value) {
   window->SetProperty(kOpenWindowSplitKey, value);
 }
 
 bool GetOpenWindowSplit(aura::Window* window) {
   return window->GetProperty(kOpenWindowSplitKey);
 }
 
 }  // namespace wm
 }  // namespace ash